Document dYoR3k6kZVkVmOv1709BxkbL6

for aenths the foundation ,,thot,>fXafr*4sed productio&.lncreesi health -- dmsmis greater *"^!la7thi* connection cones .fa re] " tro&.a company headed fl 0?;5J^ JWCn<3S,l ehich discloses ^increase 0brugEjrfts'TebRy`19^ "* crcase-in. oimdattfejji*flsld/ls Igiustrlhl thaA indurtri ove eocparlsscS'lsVslgalfleaAt- >er, the- foundation ic youc?precautioaata ie.health 'through industxi reys, appralMls?of ventllati ng and.pther services* A to* say. 19V ,the TooAJlU^kVlalthe * ,1. **.`1 Is sore'accurate shorn' ' - Sr* Samuel. S* cantly elected President of oglsts* Dr.* Haythorn, who General Hospital, Pittsburgh*' imj Association of Medical Musei * "the foundation? s staff* vast re-^\- Eatlpn'of Pathologists end Haoterlhlringar. Manor!tl'.Laboratoryrilllegbiny ` ' ` 'Ldsnt*cfche International ^ Latest, Ha2sl*dtlas js to affiliate^ ipanyt bothwall ~" iticn are-March-A Company .and up Discipline* Can Eliminate' To: - * U.S. Senator Alexander Wiley (Wia^uW >e governmentalcontrol-voluntarily (iflaividual and the group,1 o$-ven"better, ___ pline which is so sffectivmrthat it el lalneteqjthe ' "As far*as Z kmbvithe greatest the organized'affoct of. easparmtlraly than by arbitraxy^gsvarpmaent^control address; prafor sbesls.with -the or group"disci* arrant'control* < bavstresulted frcm * government rather greatest-mdroncas in arbitrary``govi ^ - *: - / .... The above applies ^th equal'foroe^Eolttiustrlel:hygieae.' This Touadatloa '.Tj represents voluntary, organized action byCreproeentatl^e^lndustrlal conoarns forythe V conservation of : mployee healthl r[*v>4" ^ economic probl^s* 'Instead-of 2S0 coapaaie^foara-ought to/be.^5QO;,ccypcnle>. parti* * cipatlng in Air Hygiene foundation* .nsf y. -**. ^ y Annual Index Issued'for Meathlv'Dl'sest,g^^^:>?j^* >.^.y; y -.4 Enclosed with this Issue of the monthly Digest of*Xadustrial Bydeon is the Index for 1940* The Index is intandedutp 'aaslrt"fpundatjLcn msmhera in locat ing pe9ifie datal Additional sopies orearaiii^lsJlf:>degjreft;4jfeft* * ' *"*V- April, 141. Air Hygiene foundation, 4400 firth Avenue, Pittsburgh, Pa 231 is is Industry following: Dr. La aparative Mortal; in Various Industries. -- Sr. Louis Disabling Morbidity fr ----- Dr. V. M. Oefafe^ Predisposing factors* ' 'MLLficant. -- Various spei Incidence and Causa erauloslsicTtrioua Induetri ee. -- Varlo Matbods of C Sawyer, L. D. Slegal. A Labor?'' p^tnt of Tuberculosis Matthew Moll. State-Wide Safety Conference. _ <s First Annual State-wide Safety Cdofeftace <w$i^be bald in Baltlaoro, rlasd, on Kay 19 and 20, 1941, under the augpnee Department of Safety __ the State Industrial Accident Commission. An #fl*irNno^ning of this confer* ence will be derroted to the study of the Karylantf^jetjipetlonal Disease Law, the State and oity health departments' responsibilltledniiar this law, and net hods for the prevention and control of occupational dlsea^fa^ Legal SyfBinpMati to) 233 Utah Occupational Disease Disability Law. Utah has enacted an occupational disease disability law to become effective . July 1* 1941* Twenty-eeven diseases era enumerated me occupational diseases ~ and disease's hot listed are not to be demted compensable. la all cases where injury reculta by reason of on "accident arising out of or in the course of aployment and compensation is payable under the Torknen's Compensation Act, no compensation shall be payable under the new Act. The list of compensable diseases followa: Digest of Industrial Hygiene - 2 1* Anthrax - 2. danders 3. Poisoning by acetaldehyde or its compounds 4* Poisoning by acetanilide or Its compounds 5. Poisoning by cyanogen sad its compounds 6# Poisoning by chlorine sad its compouads 7. Poisoning by arsenic or Its coapoj 8. Panning by antimony or Its cj 9. Pftsdnlng by 10. U. Polssi^nm 12. Poisohfag by 13* Poiaonia^by 14* Poison!omt 19. Poison! 16* Pols compounds 17# Po carbon by* 18# 19# 1 hydrocarto 20# Isonlng tiTOS toluol, ^rlol, and tbs nitro, nitroso, is subctsneos# l a. Methanol poison! 22# Splthellomatoui c ths skla or of ths corneal surfact i of the eye, duo t ^mlnortl oil or paraffin, or any compound# produet sa substances Gastrointestinal with petroletm produets and thsir fiaas Deimstitis _ excluding_ aa, ^dormqjl^if of which the primary cause is infecttfr JvQ^araaltic in natuij^? SynoTi^^Vi P^^eno synovitis, or bursts, ulltls, of the wrist, el , or hand* dua to contlnua' *Jfeeaa friction or to repeated r vibration of tools `^r7\ tion of the ildft or destruction oT^tipeue dge^p the prolonged oeure to roentgen rays or radii* emanation* m Sillcoala (CCS) Total Disability Caused by Lead Poisoning* "Compensation* for Disease Includes Medloal Kxpense. Claimant contracted lead poisoning and was totally disabled* The referee end the board nadm an award of $148 for loss of esmings bu^ ed a claim for medical expanses of #96. On appeal both claims ware all compensation* The Ccnonwwdtfc appealed, raising ths question whethar t _ compensation'' Includes the supplying of medical and hospital services# ^Te word "compen sation" Is used both In Its limited sense -- eontempletlng the loss of wages only, and in the more comprehensive sense -- including medical and hospital expenses# The provision requiring the sployer to furnish medical service is In the Interest of the mployee and when the meployer'a liability is established supplying medical service Is as much c<*pensatlon as payments for lose of earn ings# Whatever-relieves one from necessary expense Is the equivalent of a dir ect payment to Mju Judgment affirmed# Stellar v# Staller et el# Superior Ct#, last. Dist. Decided February 28, 1941# (CCS) Digest of Industrial Qyglena - 4 237 Death ftea Monoxide Poisoning* Necessity for Determining Proportion which Oecu- parinnwi Disease Bora to all Causes of Death* This is an appeal from an award of dependency compensation granted plaintiff under a finding by the commission that a contributing factor In causing the death of her husband was an occupational disease arising out of and in the course of his employment by defendant Held Pontiac -- Cadillac Company. Defendants claim there was no competent evidence in support of the findings and, In any event, tha findings requisfflTthe commission to also determine the proporflon which tha said occupatldpllgiffcease, aa a causative factor, bore to all $3S/cau3es ofj4eath and hepce p^ycrtlon the compensation accordingly. The 'finding o: " hataonosrtde poisoning contributed daath 'ed by cardiac failure, brought the neci dote the occupational disease, as a actor, bore to th and to proportion the compensatlqn"w^rovided In section act* This was not done and theremanded to the commissi y with the nentloned proTisromjerthe occupa- tlonal dl as made is vacatedietfi. the^jSroceedinga remand* ed to par award* tall V*<^JmcPontlac - Cadillac Co. ttjft \Cdh. Kerch 11, 238 Hew montane Lefdslatlo The "Injury" for which ansatlon, by Section 2911, R^J vised Codes of Montana, is qualified in Section 2870, as ; follows: "'Injury* or ' nly to an Injury resulting from seme 1 fortuitous event, as ~ contraction of disease." taws of 1937, Chap. 82, Part Chap. 3, approved Tabruary 11, 1941, offactive.July onthly benefit payments to par sons having slllco log lb- total ity to do labor. A ccn- ditlcn to the J such payment lag compensation under the Tfoitaen' a C n Act or old ago^a&lst the amount of 830 per month. (CCE). uroais* Injury Suffered forkaen's Compensation Shock- or Fright Results in DlsablJ Appeal is from a decision of the Industrij&^CdH&SsS&^i of Virginia awarding appellee, Inex Hagood, compensation for dlsehllltltiMsIleged to have been due to an accident in the course of her plojmtng>^Gn Kaich 23, 1939, Sirs. Hagood, was working at a machine, approximately IS^^et away from an electric motor which was being repaired. A loose wire in the j^feor caused t short cir cuit, which produced an electric flash and a sound rsseetil lug that of a shotgun. Mrs. Hagood saw the flesh and had started to fall backwesagzwhen she was rascued by a coemployeo* She eeld that she felt as If amtethiag aefl^Jpa up her aim* While at work on, April 13, 1939, she looked up and suddenly~jm the employee who had caught her when she fell an Kerch 23rd* She thereupon faated end fell, and has not returned to work elnce* Aa award was rendered the employee at tha rata of $6 per weak, beginning April 13, 1939, to continue during disability and until subsequent conditions should Justify a modification, together with allowancee for medical and hospital attention* The appellant contends that the evidence doeg not support a finding that tha appellee was svtfTering from trauma tic neurosis* Three medical-doctors testified* Tha doctore, in effect, stated that trmmatlc neurosis was traceable to the shock or disturbing effect on the nerves of the petleot, and that in tun, tha irritation of the nerves caused functional disordora, and, that whether tha disability resulted from nervous rotation or from auto-suggestion set In motion by mmnnry of the accident, the result was tha same to the injured person* The majority of the reported Digest of Industrial Hygiene - 5. eases tefc# ths view that tiara is an accidental or parsoaal injury witSir the worlcaen's compensation acts where an maployee, la ths coursa of bis employment, receive! a sudden shock or fright, involving ao physical Impact, wblcb results la bis disability* Tba disability of Mrs* Hagood was occasioned by aa injury which say be fairly traced to a risk which arose out of aad ia the coursa of her tmpioyaeat* There was a direct causal relation between the electric flash aad the irritated condition of her nervous system. The order of the Industrial Commission, is affined*. Burllogton Mfffijt Corp. at al. t. Baeood. Va. Supreme Ct. of^ipp. Decided Tebruary 24* _ " PartlflPDiaabillt^^ecauaa offS^lc^^s. Constitutionality of Act. 240 This It#sctio reia an emp' loyee seeks to recover alleged perfttl dl Iccouat of silicosis or othor dust dissa&^hused by . the aliec>dtei the employer. The employer moved Cqr ^uranent on the pleai complaint oa ths grouads that ltjtfugjtf'to state a cause of actl court was without jtulsdictlonfbrtfa* subject of the actio ascd oa sections 66 aad TBC^f tawWorkmea's Ccsapen- satlo:____ t, not only dany >a under~t. so bar a recovery for keia aa action due silicosis., The da for partial disability at dlalsslng the complaint, sad from that judgment y to this court; attacking thrf constitutionality of s 1939, the Workmen's Cmpensal- tloa Law made no provision compensation for diability, par-* tlal or permanent, dna to : 'ollowlag year the Legislature amended subdivision 2 of seotloa occupations! diseases -eighth category: "Any aad all tthla amendment did not apply where "the last injurious-q _ to September first, nineteen hundred thirty-firo^VhrfSili coals thua^becane^ ipeasabla disease aad it also became aubjeck^oXur bar of section l^&onc J actions at common law. In 1936 silicmtlS^Slwsxcluded from _ Lvlsloa 2 of section 3, end made the^t&B^eBt of a separate article rtdse&s Compensation Law, article !, ch* 387). The concluding seq of^orplple 4-A is section ?2, *Alternative remedy," which in l. J alsosjl^Ldeatical with that of L provides that "Ths liability of aa^kpJoyw^fribed by this arti- shall bn exclusive aad ia place of any othe^nebiH^whatsoever, at common law or otherwise ***** But la ths course of ennoUag egejtele 4-A, ths Lagis- leture also provided that "Compensation shall not Vjr^gyeble for partial dis ability due to silicosis or other dust disease" (Se^fjM). This is tbs point at which plaintiff is aggrieved end which causes him to efgue that if sections 66 aad 72 token together rule out both the payment of workash^, compensation and the recovery of dasiagas at common law la casts of partiaiplsilcosls disability, article 4-A is. to that extent unconstitutional* Plaintiffs contention on the merits may not be considered at this tins* aad ths appea^iust be disisaed because there ere Involved questions other then tho constitutionality of the statute* Ia order for the plaintiff to succeed the attack oa olthar section 66 or section 72'iauat presuppose the existence of ths other section* If plaintiff were sustained in Us coataatloa that tba 1936 amendment is unconstitu tional ia so far as it purport# to deprive him and others similarly situated of tha right to 'fecapeasatlon theretofore created by the act of 1933, then it would follow that his rights are governed by tha act of 1933 as relieved of the invalid amendment which the Leglsleture sought to engraft upon the statute* Ia that ovent plaintiff poaaeasas not the right to recover damages at common lew, but only tha right to receive workmen's compensation* An action to recover damages at canon law cannot conceivably lead to an award of compensation and, therefore, ths question of ths plaintiff's right to compensation cannot posaibly be Digest of Industrial Hygiene - 6 litigated la this action for damages which he has brought. la considering the second alternetire the validity of section 66 is assumed. It is not intended to pass upon the merits, it is clear that the appeal in the case at bar oust be dismissed because there are presented questions other than the constitutionality of the statute whose validity Is challenged by the appellcnt* The appeal should be dismissed, without costs. Powers v. Porcelain Insulator Coro. B.Y. Ct. of App. Decided Kerch 6, 1941. (CCHj. 241 Pnaiaoeonlosls. Death Prom Iaprope atlon Wot Compensable, Plaintiff, as sole dependent of tor, deceased, sought compensation the o<^jjpatlonal^ ' t Ww'the Workmen's Compensation Law. Deceji had worfci^ns a ndldhr in ,dry of the Salanasoo Stove fc furnace defendant years* Deceased had suffered diffused ill coals and active proliferated tuboftMLe^TS with cavitation; Kthe disease some olght yeere prior to^0atb. Beth the deputy the board on appeel denied pldkfixriJmJmpensetion. The teatli t that the room in wMchdeceoan* was working ns is not eompassablenKup^ha aot. Silicosis is Wble it Is caused Pneumoconiosis is )6slble dleei^* fo plaintiff jmtr^pftver. The causes enumerated srust^>> causes which .Stic fuller to* claimant* trade* Grinding of aetal Is no _ of molding*. Decedent's death, j in the present case arose thee spar ventilation In the foundry in which he worked. While t provided for the maintenance of i sanitary conditions In foun not seen fit to predicate statutory liability thereon under t ease idment. PlaintIff's dec< dent was not engaged In ittl Mag, grinding or polishing of sets! and, therefore,/ tettf t recoWr under the eet. The award cf the commission is cdsts^to defeffitant*. Sutter v. Kalamazoo Stove & Furnace Co*. JH.0 tpreme Seel ded^Aprl^^1 (ccfii. Compensable under W< ten* tr.Coaj Ion Act*. jts Supremo Judicial Court; DeMei Lunch Co, of Boston. 30 B.X. 2d 827; decided JanusCrj^SL 1941.^. In actions for breach Implied werreaty of fitness of food uamgra KalM&uctts statute It ared that the plaintiffs worked for the datspd&Bt company in one of Its stauronts*. Zach plaintiff took two meals a dsiy, a*coptv5^nday, at the restaur* ant, the meals forming part of the pay*. Both plaintiffs became 111 with trich inosis and testified that, during the 2 weeks prece&uLtha onset of the disease they ate pork and other product! of the pig et the defendant's restaurant and nowhere else* She defendant was insured under the worMwtfe compensation act and the plaintiffs bed made so reservation of cowon law'W^tte under that act* The suprae court took the view that whet happened to tbfit^idAtlfffl consti tuted a "personal Injury* within ths workmen* e compensation "It differed from the Inhalation of genu of disease. Illustrated by Shith*! Case, Hess*, 30 H.Z.2d S36* It reasmbled more tho cases of poisoning therein cited, and .Oeterbrlnk'a Case, 229 Hess.-.407, 118 Ef*X* 687, where the wployee drank muriatic add by mistake for water*?. Also the court was of the oplMon that such personal injury aroma out of end is the course of the plaintiffs' employ ment*. "Since the Injury was compensable under the worfoeen's compensation act. It will sot support an action against tha smployar at lav, whether In tort or in contract, or whether or not based upon a statute* * * The action of the court below in ordering Judgasnt for the defendant was sustained* Pub. Health Bep*, 5, 300 (February 14, 1941)*. Digest eg Industrial Hygiene 7, 243 ITo Sraosure to Silica la glass Plant. This claimant applied tor an award from tha Occupational Disease Fund, alleging that he was forced to quit work oa Hay 31, 1940, as tbe result of getting glass la his lungs while la the course of his aployaent. The elal&s reviewer report* ed that the claimant entered the service of tha employer In January, 1937 and worked until May, 1940, when he was compelled to quit work. He was a laborer In the plant, which has a glass processorJgt the preparation of glass sheets for shipment and sale* Ha did not do env 4F(the work of grinding or polishing and the evidence was to the offset tbaC^Baare^AS an infinitesimal quantity of fret slllcfcdaithe air^f the plant^and s^oore dust than in the average plant, ' leal prod^of recon) shows xwPmie claimant* a disability was caused by^ and that^ft^ea wg^aftacdSateK Proof also failed to show that clain any lnjurl^p-<postffi^^.)^icon dioxide either before or efter the Silicosis ABnraenS^^Smedlcsl dspartmsnt also disapproved thMscl&ar and the Ccnisslon orfe&$^hi^$*^fea denied* Ohio 2nd* Com. Honltfl^ H^z?, (February 1941) 244 aagetrBocausei SupreaeVCdkrt; 16 a* 2d 534; deci64 December 4, 1*40\ Zh plaintiff alleged that he had eon tha defendant company as a result of ' the following provision of a; Pennsylvania statute regul `in industrial establishments: hsuat fans of sufficient efficient devices, shall be provides for ths purpose of carry a sad gases, and dust from aaery- wheals, grind-ctonea andmnbr^mcu^er^ dust." The plaintiff present- ad proof to the effect^u^klthooghe: oxhauat fana in tha grinding and sand-blasting were a6t suffi ,to carry off tha dust in that room and that thd^^^eterloua substonc^pe tha atmosphere of tha welding room whoiw employed, w ^Asperated from tha grinding and s/md<gh3mtjajf room by a 12-foot roof^f all Tha plaintiff prevailed in tha and the defondant appealed^ ' contention before tha being that the statute added" ng oo tt responsibility of the or to the right of thi employee and^ tiSferffj&re, the plaintiff not recover until he had shown the aTti _ Ity O&Mcticability of nore 'icient devices for the prevention of dust* '^Wlth thia^rgvment the appellate court said that it could not agree* That , this legOhlatiotfr said the court, placed a definite responsibility upon tha eoployar datfSd not be successfully ccn- trovarted, for it was wall settled that a violation of/the statute, which result ed In injury to the aploywe, made the employer liable' tjbda canon law action for damages* "Thera was no burden upon plaintiff to earajf&h that more effi cient devices than those used by defendant for the prevent^ of dust were avail able* All plaintiff was required to show was that the axhauetgPans la use ware not proper or sufficient compliance with tha provisions of tbr statute." Also tha court was of the view that the defense of assumption of risk was not per missible, aa there was nothing In the employment as e welder that presupposed any scientific knowledge "such as a knowledge of the propertlee of silica dust and their injurious affect upon the body,": Respecting the word "sufficient" used in tho Statute-, the court stated that It was a relative ten depending upon the facts of each; case* Another claim made by the defendant was that the above-quoted statute had no bearing upon the controversy since It had been repealod without a saving clause, but the court found no merit in this conten tion, saying that the vested right under the -provisions of the statute which plaintiff had lamedlataly upon tha injury occurring la 1933 could not be impair ed by the 1937 repealing statute. "It is well settled that the repeal of a Digest of Industrial Hygiene - 8 statute cannot deprive 4 plaintiff of his cause of action under It for damages for injury either to- praon or property," The jud^ent of the lower court In favor of the plaintiff was affirmed. Pub. Health Rap., 56, 400*401, (Tebruary 28, 1941)* Pajer^jn^Dust^^ase^an^Gener^^ndustrial^grgieae 245 Madtf Service la. Industry, lancet, pp. 1*3, (January 4, 1941) ,<a Zndua w4w4 >medioihei la its. m iofi of safeguarding tho health of workers^and; Ined to routine tasks, but also preaea^SjypSc- lean for dlseasss occur. The author cites led to successful research*. Tor lns<uw7the similarity dermatitis and tha irritation,^ !ft^dn In *mrkora expos of oranges, lemons and eelory, (ortught to light the t irritating qumlltlos*^tu abtlon of mstalllc poiao r physical state, ttpo|)^rgiialc or inorganic, whafck .whether lnhaledsSPvtagosted* Tor instance, tilnt tha ataxia, insomnia, delu* sloiar and mania, inata the^fcf*t-drgp/(3lin and anemia of inorganic lead poisoning* Those facta, es ffctthers that are mentioned, show \ that there lo constant cal rei Industrial modicine increases in id* portanco as 4 apacial brandm with opportunities la lndust ,^Jh, it must be taught by specialists * 246 A___C__r_it_ic__a_l__R__e_v_ie__w__o__f___________________i_th__o_d_s_'_.:_^_r_p_lo__v_e_d_ In Wjtwatsrsrand Gold Mines. J.deV.Lonbrochts. l.flhM.Kt.Uin.Soc., So'lAfAca 141, 210*40 (December, 134C), The author has m*d!Sut^rt*nslve ccmpd^son of^lha konimeter and the thermal precipitator s&iug^ln the South Afrl^mJSoi^aibs* His conclusions ere s^marlz^^i^^lowe: (1) the thaimal^WecipitM! If usod In conjunction with tha^mcjiuque which only requires igaittpa o^Sbords, frequently glros .ending information as to the's^pto uB^fes distribution of rockrieles la tha air, arid tha consequefft/^Ucoal^lsk; (2) a revised la recommended by which the soluhle^aSxpthaf^Jeda Important particles removed, without losing otot 10% of ths rooJMujt pSti>lei; (3) tho effi ciency of tha Iconimeter can ba greatly improved b^g^siaitir change in technique; (4) aggregates of dust particles ere broken up by ImpingAent on the konlaater slide, but are mot broken in the thermal prcclpltetoxj^3) for mo*types of dust encountered in these mines, the konlaater has an effteisSby almost equal to that of the thermal precipitator; (6) with tha darttlald teebsgjpa, tha efficiency of tha koniaatrio method falls off with increased dust concentration, very largely due todefldenoy in the nleroscope tochnlqua; (7) gensrall^egtottng, tha koni- mator with the* roccaoaendad treatment should give an ontirsly\]peiiable indication of tha dust risk at tha time and place of sampling; (8) tha thermal precipitator, used as recommended, Is Invaluable for special Investigations, because, besides giving a continuous sample, it gives information both as to mabars and sizes of dust partldos* In certain types of investigations a dorkfleld technique can be employed to advantage with thermal precipitator samples* Ths paper is ill us* trated with numerous charts, tables end photomicrographs, and a bibliography is appended* -' Digest of Industrial ^rgiane - 9. 247 The Determination of Dust Concentrations la Mine (29th Report to the Camittee oa tho Control of Atmospheric Condition la Minea.) J. Howard Griffiths and T. David Jones. Trans. last, Mining Ragrs. (London). 99,, 150-30, (July, 1940)* Thin report is the result of o year's study of aethods of dust sampling In eoel alnts, and covers choice of methods, rate of stapling and size of apparatus. Only weighing methods are considered, aa-la customary in British alnes. An apparatus including a Sozhlet thimble gwfound superior to a filter-paper dance The egtabrs' conclusions are as foy^ksT^Xl) a correct sample can be obtained only the velocity of sampling lijthe seme as that of the air current; if tho sealing tttpeity Is hxweight of the sample is too high and tains tod^ifc. a pereWnturarvyBarae material; (3) if the sampling vaL^t^d high, the'^^hl ls'^tod^owajhd the percentage of fine particles (4) the effeS^af hiifiVgJLo^ity!Is not as narked as that of lowxala)r&fr; cad (5) sampling t^yu^^^^^.4 Inch In diameter give corTect^eflgp'wlthin the experimental e^wj^hTW^OTv smaller tubes give tnconsistei~iiw-fta and have the addltlrfh^<4wu$Fk of^w&dring a long time to coLtfkt necessary sam ples, d*feua_3loa^:^he paper Is report^^v^^ 248 The^ai,, __ -------- ^ iftror Loading Point. Placod In ayintaicf Roadway of the Moimouthahire and . South Wales Coal Own In Iroa k Coal Trades Rev., ( 141. 33-41 (July 12, an 1 a. 29-38, 33-6, (July 12 and 19, 1940). i The report gives a detailed dust collector constructed at the loading point, at which tss er than at any other point In the also. A mist proJectop*mX< ^ he efficiency of the collector for fine particles. tostsy the dus^^feet from the loader was reduced from 3.112 to O.Qefoi^fer ou. ft., ' of 9485. Recomendatlons for additional imwfcidbjSSs are made, aspect! uclng the also of the collect- or whan tbe&Aax^roJector Is used. 249 Supcreesloa. Coal Dust Re! ' >e of the Mooaouthshire Wales Coal Owners1 Asaoclatlon. >r*?. Itracted In Iron k Coal is Rev., 141. 368 (October 11, 1940) and ry , ian 1^| 3 6^8 92 (October U and IS, 1940). 'This report covers a study of the efficiency of vtrj sprays and water with compreesed air in allaying mins dust. Water ' are not very effective against air-bone dust, but are Ideally suited for _ the surface of the coal and oo preventing duet-cloud formation. The addition) of certain chemicals to the water to reduce the surface tension Increases ths^ffectlveness by de creasing the mist particle sizes, but the increase le onlyven when using relatively strong solutions, and does not warrant the addlf^gl coet and trouhla entailed. The meet efficient atomization Is obtained by passing water through the inner nozzle, end compressed air through the outer nozzle. The average size of, the mist particles produced by a South Wales mist projector is about 63 mi crons. In general, the greater the air to water ratio the finer the mist, but there is m critical figure beyond which vary little advantage is gained by fur ther increasing the air consumption. The finer the mist, the more effective It Is against air-borne dust. However, If it is too fine the water evaporates be fore it can wet the dust. In practice it ia baat to adjust the mist so that the air feds damp, but not wet, at a distance about 4 fast from the projector. Tho greeter the relative velocity of the mist to the duet cloud, the greater the effectiveness of the mist, end therefore It is recamBendod that the mist should Digest of Industrial Sjrglen* - 10 be projected la the opposite diractloa to which tha dust cloud la moving, Tha South Wales mist projectors, found superior to all others, are capable of suppressing 80 to 90% of air-borne dust containing particles below 2 microns. Tha efficient of all such projectors Is such greater than that of steam. 250 Predicting Cost Concentration. Prank B. Rowley and R.C, Jordan. Seating, Piping and Air Cond., 12 . 699-702TDqcember. 1940). .* This article is devoted to the factora^ffectlag dust concentration levels in enclosed spaces. Tha rates at wfeichsjralv laden air is introduced into the spaca^tdth which dust is prcducetfSfcltfie space and with which dust settles fpj tha axg^and thereto at whicknir W^filtared, are usually of greater Ins tance lr^^e_ det3|iiiatiOB^frS^ual dust concentrations than the efficiaj of the thdrisiln&Sxetaodi of rating filter performance, and eotfilftraipn*. tumSud^nust souroea and settling of dust are in detail. ^ 251 Predict!: Piping _ nnti _ T__W; ajpaTssresg?' la hsrgely matbiaatl II. Prank 8. Rowley (February, 1941). Lon of the data filtering p seating, the first paper given. The treatment 252 Cleaning of dir and Gas b . Samuel Blecktin. J.Soc. Chan. Ind., 58, 334-8" [l93*#<. The affect of heated solid i in producing at normal pressure a dust-free region around dloaster action. Tho author con- ducted experiments test sources^ heat and different types of dust- repelling apparatus .cal heating onductlon) and hot-water heating gave comparable rmwul^d^/ A peripheral^_hot cpulsor was developed and served wall repellor. In asr^ect heated apparatus with air originally?nS.*iSg at 18.4C. 90,30^ * per cc., the contacts were at <S^W,000, at 55 25,760, atS at 85.3 3,200 particles, An asd&nvjir using hot-liquid heating gavif? inelly containing at particles peroe., at 29 17P10(J.,^, _ at 55 3100 and at 31 ?articlea per cc. '^< Cleaning of Oaa and Air by Thar*i Repulsion. Blacktin. J.Scc. Chsa. Ind., 59, 153-4 (1940). : _ Tha author gives data showing tha efficiency of a patfforated repulsor 0.25 in. in diameter and 0.375 la. in length, described In the^fixst paper. An effi ciency of 94* was obtained with different smoke dlspersSogm at a rats of 4 cu. ft. of air per hour with tha ertrenaly low resistance water gauge for tha perforated repulsor of 0.2 sq. in. of effective area. author claims that the resistance can be further lowered by increasing tfia^Qngth of the re pulsor. Trial of an unperforated repulsor gave decidedly inferior results, be cause the black body radiation from the perforated device contribute! very materially to ita efficiency. Tho work described is being made the subject of patent rights. 254 Silicosis frdm PomtoTT with a note on "Acute Silicosis.* Syaanskl. Arbeitsichuxz, p. 272-4 (19401. (German). .. Porphyry contains 30 to 50% free allies. Tha author reports o serious ease of sllicoals in a man who worked for 7 years as a quafryman but aa endangered oo.r during 9 month's experience as a driller. Twenty other casea, moatly slight or medium* ere noted in workers in porphyry. Digest of Industrial $rglf&e - 11* 299 South African Silicosis Report* Anonymous. Iron fc Coil Trades Rot. , 141. *24 [November 221 1940) The Awwimi Raport of tho South African Government Mining Sngineer for 1939, just Issued by tho Union of South Afrleo Dependent of Mines, records that silicosis prevention work was continued o&orgotictlly throughout tho yeer, on tho sum general lines as in tho previous year. Voter is still rolled on as tho princi pal netted of controlling dust production! but Tontilotlon too been Increased, and is considerably in ozeoss of \m requirement* - Generation of dust by Jadphemser drills has roceiTod ble study* Tho incidence of silleo- sis harateadlly fallen from 11.9 in 1931-2 to 7.a per 1000 in 191 This''^appease, botfwer, lo paztfy dtfiT to tho increase from 51.9 to 60% in abor<o^inerk'w$h lesj5ht&)J6 years' service. The ntabor of new ci silicosi * 9, is tho highest recorded since 129( is to bo nxaber of miners with over 12, and years' 'service has Practically all the new case oj^old miners* who afore 1916, and before the be protective iaprov 56 to the and Artificial 243-8 (194017 Experiments ware cond 2 natural and z artlfiei minerals, the other of c Ko silicotic changes ware p tissue and capillary: proli tainlng 93.2 and -74**2J report-is being pre duet produced by crushing j r._ __ the latter was compounded of : containing 29Jt insoluble silicic aei^d. r dusts, but only slight connective t of the natural grindstones, consilicotic nodules. A fuller 237 Bust in the S _ sarth Industry, Arbeitsscbutz, p. 226-9 (1940). ( the dust problam In tS^ . ustry is followed by a re- on the technical aspect of wh^rebl pecially regarding dust counting, mentioning only the^gNUmet tyndallmeter. Ha nds portable vacuum cleaners for dust^i^edna the workshops. A follows by Budcup on the medical aspects o t a. The Sszon ain- Lstry baa^iaatalied an. x-ray car with which ovef^lS^ nations have been made in 9 months* The screen method used is cheajFjtyt no ways reliable in diagnosing first stage silicosis* 258 - The Slllcotlo Module In aimen and Ereerlnental Sllico^iaSia Comparative Stud?. 1*2* Balt, AJU farris and 2.1. ling. J.Path* and Bact*^ 263-7 (SeptAber, 1940) : y The authors have made a comparative study of silicotic lesJ gSun man and in rats, tho latter produced by. single intra-tracheal injectioni^^o?r isilica, ranging from 0.8 to S microns* They stress the zone of fibrone tissue practically with out silica particles ("redundant fibrous encapsullzatlon") as an Important difference between silicosis as seen in man and that In ezparlmantal animals, ~i r :ln which they found the condition was absent* They also point out seme differ i \ ( ences In tho-; character and pattern of tho fibers* They speculate on the possi bility that in man the lesion any be complicated by infection* An additional feport is promised* : 1. i _ Digest of Industrial Hygiene . 12. 299 p>fffrw7toali of Foreign Matorial 1 th* lima, Q.H. Robertson. Fhjsiol. Hit., 21.112-39 (January. 1941). _ Tii* author renews the modes of entrance, distribution tad disposition of for* sign material la tbs rtspiratory tract, first, th* progress of foreign particles to tb* lung 1* Impeded by tbastanous course of tbs nasal passages, tbs sticky nucous ebarnctar of tba surfaces, action of tba cilia of tba ustmi and tbs cougb roflsz. Disposition of tbs material that bas entered the terminal respir atory units Is less simple. Tbs principal method is by phagocytosis by amebic calls, tbs type of call sployed dapepmag upon tbs character of the foreign matteryBacteria such as tbo pntigatf^pc^l aro bandied by tbs polymorphonuclear^ lauco^r^fi* nblch gppear In great Bowerer, with mineral dusts, tbs lsrgs B^sobsgs^nfmislly prfdnjb lnthe region goes into action. They qu^kl^y engulf Sl^cn dus^ixsi^W&ag^ carry them rapidly to lymph Teasels id tissue. Bn^eaalot(3^ft^^.c call dsgencratea, leasing tbs siliggjfEweiin tbs paroncl5wai^|4i)tas^WSrasbestos, tbs process Is somewhat diffgreMN&i account of tbs large fiber. Macrophages accumulate^rclln^RLe fiber and form glant^SQiV'Tn imBth tba so-called asbestosla bodlPapyaar. Inasmuch as tbs luDj^efnr^fl acSrn)a filter for foreign matsrtal injected Intraven ously.^i^agacJt^lTemlty(.j)igjmgeprtetCy+ejt tba pulmonary capIdJer'csndothelium bntrary. Tbs carries same is cells 11a A bibliography of 195 ea is Included. f 260 Asbastoals in Grinders and p. 172-4 (1940). (German) Bradmana. Arbeltsschutz; 1 Brake bands aro made thee Aor art pressed out of asbestos waste products and a artificial resin. Afterwards the bands and plates ora lied. <&f<^pxony ell workers in asbestos plants must be era ally. 'CTthieal'^nd-x-ray examination of tbs grind- ers, drillers flla lndlTldusi piaCjjljbas shown a few light cases cf isbestosis work, and iajjearly ucb workers after 5 yours employment *is0> par is a brief description of asbesto stiffs s against It. Tbs author states that no,r* nasal dust filtering ability end degree of asbestog2 tsaebutz. pp. 191-3 hian account of tbs p was found between 262 Methods of Aroldlng tba Dusi Danger In Asbeatoe Plan^sSyalld frem August 1, 1940. Anonymous. Arbeltaschutzr pp. 263-9 (1940). f&^aun). Tbs new regulations concerning exhaust systems, establls^^^y the manufacturers, insurance association and Gorman factory inspectors, era Mgadbed. Tbs effl- cloncy of tbs systems must bo tested by a raprasantatlT# o^dUM^lnsuranco association. ,, 263 Roaulatlftw CMnf th* Regulation Regarding Manufacture of Qlass. Grinding, etching. Painting. Glass Containtrs cad Related Industries. Dated September 13. 1940. Anonymous. Arbeitsecbutz, g. 263 (1940).(German). Tbs Oorman regulations prescribe that i-ray examinations be made of all workers ^ployed at certain jobs in rooms where glass containers or refractory materials era produced or where sandblasting is conducted. Tba examinations' are repented ercry second year. All parsons engaged in producing lead-containing mixtures or using lead colors are to be examined at least *rary 6 months. Digest of Industrial Sygiene - 13. 264 Silicosis in Ohio in 1940. Anonymous. Ohio tnd. Ccm. lionitor. 14, 15 sad 30. (January and February, 1941). Although incidence of silicosis at large nay be on the decrease due to the knowledge gained regarding the disease during the past twenty years, neverthe less many acre cases have ccmo to the attention of the Ohio Industrial Com mission in 1940 than during any year since the disease bocarie cempsnsabls in 1937. During the first 29 months of operation of tho law, 330 claims were filed; while In the 12 months of 1940,claims were filed. In the 29-month period previous to 1940, 111 elaim^fllro^giloweA and 163 claims rejected. This is 40 peer cpent aa:llowance. h^Cyhe year 1940 , 83 were allowed and 113 dl sailO' oiw^tge 265 X-P.gT a^ton Caertnsr. The i-ray author found kaolin end produce _ of Dust as a Method of Medical 193-3 (1940). (German) ~~ borne dust end dust In the lung cotic lungs of china-clay wo. eludes that these substasAi 266 Processes orTiltret __ T_lt_a_a__e_m__. Z* Zlektro- chem.^46. 313-21 (1940) The basic laws of aeroso agjprsad, with reports of experimentA on filter saterlals of kso rueture with definite test vapors.; The condensation aerosol of t G is used as test vapor. With i multiple-layer filters of ce; the deposit of the precipitated vapor within the flltsr cr simple absorption law. The por- centage absorption power,^to^^fierovtl^gapc siUc filters as well as for filter bricks and Jaa^rgihss^rrits was date: The idoas of separation of dust particles by^^^^pURtatlon, reflection nnlng-out are transferred to aerosol flltrnSsfonvOTho controlling 'stab&i can f flowing motion for aerosol filtration Jfe \anyda. Laws found for tfiqF^ste ytng filter-aerosol are iike- wise bapl^^t Tine filtration of liquid ' la 3<jjbpiaaS^s.,C.1 267 .ts in Electrical Precipitation______ i .W. Hsdberg and L.JI. Iron fc Steal Engr,, 17, 18-27 (July, authors discuss the general principles and itrical proclpita- tion, and describe its use In various processes in manufacture including cleaning of blast furnace gns, ferro-aanganess gas/^^^gh silicon iron furnaces, and dotarring coke oven gas. A spocial application uC&aanlng coka ova gas under high pressure Is dascrlbsd. In each of these usec*^ho problems Involved and their solution era discussed. Studies on the application)* mentioned and on new ones are being continued, sad promise Improved performance and lower Initial =* ', ; 268 Soldering Fluid Containing Hydrochloric Acid, end Pulmrmsvy Fi^osls. J.Am.Med. Assoc.. (Queries and Minor notes.1 116. 335 (January 25. 1941). A tinsmith has used hydrochloric acid in his work for 20 yeere, and now has widespread pulmonary fibrosis end disabling dyspnea. The question Is whether tho sold is responsible, and whether the use of Speer soldoring fluid will pre vent similar trouble* In tho reply the conclusion Is given that hydrochloric acid does not cause pulmonary fibrosis, although it has injurious proparties whan inhaled in axesss. Spear soldering fluid when properly employed is said to yield no free add and the manufacturer claims that it is free from leed and arsenle. Digest or Industrial Sygieae - 14. 269 Calayi Metric Deternlnatlon of Carbon Monoids* S.K. Cbuaaaov aad V.B* Afcsel'rod* J.Applled Chi. (a.S.S.R.l la. 1568.70 (1939). (Russian, with ?Ttach SUBBajy) Experiments were carried out for detexnialng minute amounts of carbon aoncside in air* Persic salts as wall as salts of palladium end gold ara raducad by carbon monoids* Tha raduction Is slight without a catalyst but roaches almost The author reporta that 790 of tha workers la a foi^r? ware polsonad to scae dogroe la a rocs hasted by coke stores without exheuatf? Carbon bononda hazards la foundries* especially in drying molds and hea|pg of drying chambers, ora discussed* Too aasas of poisoning during repair worths* a gas generator are also reported* 273 Tha Mental aad Neurological Sequelae of Carbon Monoalde As In a Case Obaoired for Fifteen Tears. 2f. Raskin aad 0*C* Mull easy. J.Nerrou* aad Mental DlS.. 92. 640-59 (HonbeT. 1940). The author presents a thorough s\aary of the dialcal aad anatomical changes following carbon aonosida asphyxia as reported la tbs literature* end des cribes obserrntlons Bade oa a ease orer a period of 13 years* A wmaa of 43 suffered sub-lethal carbon monoxide poisoning* Partial recovery froa the early sytrptcas was followed 7 years latar by nervous disorders which perilited until her death 13 years after the accident. The clinical picture was essentially that of Parkinson* s syndrom*. Clinical aad aaatcaical details are given* Digeat of Industrial l^giene . IS 274 Dstaralnatlon of Carton Monoxide SMcglobln in the Bloo<* of the Photo electric Colorlaetor^ R. BaTaaun^ Pin. ycbaschr., 19. 1183-3 (1940). Tossn . Determination by this method, which is described, requires only & shore tine and 1 cc. of blood, or ewes ns little as 0.1 ec. The error is said to be 0.35t. ' 273 Sulfur DloiAde In the foundry. P.A. Allen, Itetal lad.-, (London). ST, 172 ^August 30, 1940), ' Sulfur dioxide is ineeltebly present varying concentrations in foundries pro- duelnm magnesium alloy castings ed In magatsltm casting to act as a diluswsof the air to prevent sa: datioa. Zt is also oftsa usod in treat^nt of cas ion treatment for the seme purpose^? questiodSSf it is important bow, because aagneaiua zai\x>*' product^bn^s 1 art acquire considerable tolerance te ranges, but it la^MSfible' a apparent tolerance is attained at thaQm&dsa of general be although there are some workers whofoavv^een la the magnesium it IS yoars without Injury from /Ws-pi? The (British) Departmaafc^MEEUntifi Industrial Research has pejtabji^liad one port sulfur dlo^de^tt^pOvS^xparts by voliae os the iguuHBLcoacentration allovcbln to zSftisfaoo urs*^exBOs one port in 2,0^ras^)Kugerous oven for short or foundryto test their foundry at^ephero to asee *r sulgrvdjpde content is within the safe Unit* The tosta she mr the workers and at approximately hsad level. 276 The Treatment of Acute nod. oxptl., U.S.S.R., The inJaction of a sol in physiological saj the injection of^fV doses of sulfide per woight) led was tried .i Poisoning. Heshenin. Bull. biol. Russian, with Xogllsh summary.) peroxide end 1$ sodiua bicarbonate paralytic state as a result of solution (4.0-4.6 mg. hydrogon cry in all 9 cases in which it fids? Its Toxicity and Pot DiV. of Industrial Hyg., Iat. of Health* Pub. Health Repts.^ (March 21, 1941). alleat short bat ccnplste discussion hy on carbon disulfide. topics discussed ere: Pfayslcal-Chmsicel' Permissible Concentration (20 p.p.m.), Sources of Exposure^ _ n in Air, Blood and Urine, Absorption and Secretion, Relation BotweetfJSciicentrtftions in Air and Toxic Symptoms, Clinical Flctura of CgS Poiscnlag.^Pittbclogical Changes, Changes of Tolerance, Physiological Mechanism, and Prevent! 279 Alain Devices for Indicating the Presence of Dangerous *Hd Tewaye. Chomisoh-teeimische Relehsanstalt. Z.ges. Schiesa-iL "sprigjutofrw. 34. Z2*-1 (1939). (Goman). - Upper and lower explosive limits are given for 19 combustible* gases in Arturo with air, and dangerous end lethal coneantrwtions aro given for 16 poisonous gases. The requirements which a satisfactory alarm devlee ahould meet are l:*t- od. All caourciol devices tasted by the Chomiscb-tecbnlsche Eelchaastalt md by certain other teating stations are named and the prlaciplupon which they operate ore described brls&y. 279 Pbyslotoxlcology of Poison Oases. L. Bcrlaat. 7. pham. Belg., 2^, 613-24 (1939). (french). . The gases are clgssifled and tabulated according to thair tafl-city. Symptoms produced by the different gases are given. Digest of Industrial Hygiene - 17. 28ft Ptajgaealogieal Properties of Ctrtaln Jctureted fluorocarbons. H.C. Struck tod E.B. Plattner. J. Pharmacol., SB. 217-9 (1940)'. Breathing air containing high concentrations of lacafluorobutana, boiling point -- 4.5C., and decafluorocyclopentena b.p. 3, profoundly depressed nice but did not produce true anesthesia, the alee responding to stimuli at all . tines. Death followed fro* congestion of the lungs due to irritation. 287 (Benzol): __I_t_s___T__o_x_i_c_i_t_y__a_n___ itlal ^mgers. Div. of Ind. Health. Pub. Health RPtf#>2S> 319-527 (harch 14, 1941). the s Ls* of shefiKfcut ifleaplet* discussions of conon indust: Ls ^ws the^Hemard. foan discussing: Physl cal-Cheoicj ties, htflmel ? <ntratlon (100 p.p.a.), Source* of Determine cd, Absorption end Secretion, Belatlogt3^fe& Con centrations' ic Symptoms, Symptom* of Acute end dOjonx^roiscniag, Pathological ^logical Kecbenin, Habituation^roKh^actic Measures,' entV 288 in_z__e_t_ fedroc Arbaltsschutz, pp. 13(Cyl._ l German) aaition of thm^ , benzena and its boaologs covers acute end ehro ,***tatlng effeots on the skin.; Benzene and ite bandogs, bare acre injurious effects, acute end chronic, than those alipbetlo hydrocarbons known as heap zlne, naphtha or light gaso: -'"a benzine contains 1.4 to 2.3ft aromatic hydrocarbons, ofto<J^ is benzene; the product freer the Dutch East Indies contofa^Bl^ewnitic' erbons, including 7% benzene. No chronic affect has bete&T^fed froa^tbese mixtures but blood chugee and non hematogenous disagte^kKre been nOted^ Aaoi^^he arcnatic hydrocarbons, ben zene is such mo^dangerous than tolusn^>and^nUtoe, probably because toxic lntcmodianmuts aro formed frar^raene from the others. On the other hen^&Mc^irritatiag effect on theC^oA is''9cmg*r from the peraffins thenv^d^pm arosetice, and less in low-MSojjfciag ^gdj&Lons than in the high- It. N _ aaic Bonsol Poisonlae in Plastics Industry^Bobe oi&fffer Dameafge. H. Hciaann 'and C.B. ford. H.Y. State Pant. Labor. lad. Bvra.-^.^VHBcvamber. 1940) A study of 13 ployeeetf e factory processing concur doth with benzane dis closed 1 fatal ease of benzene poisoning, with sym|&ft^fc end clinical signs of aplastic mania, and snltlple hemorrhages. There werg^al.so 3 aild cases, in which the symptoms disappeared after moral from expfesury except that In one, a case of acrmocytlo `tIi. the normal blood picture wg^Mfet regalnod. As a result of tbs investigation another solvent was substltutegJor benzene, and adequate ventilation wee Installed. There ls now no apperfc&Sboarth hazard. 290 Colorimetric Determination of Vapors of Hltrobonzene. Azobenzone. Aniline and Benzidene ia Airl M.S. Bykhouskayel Org. Cbm. lad., (U.S.SJL.) , 638-9 (1939). (Russian). The analysis by known methods of contaminated air in the production of benzidene is described' in detail. The air is passed through a nitrating add to convert nitrobenzene Into dlnltzobenzene and azebeazane into dlnltro-czobenzena. The latter reacts with glucose and sodlva hydroxide to give an intaase blue. Dinl- trobeazene in acetone with sodium hydroxide gives e violet reaction. In vapors absorbed in water* benzidene gives e blue reaction with ferrlo chloride and sodiva hydrodde, end aniline gives with soditm hypoahlorite and phenol a palo- blue indophenol reaction. , Digest of Industrial Hyglsos IS 291 Tolueas and Trlene. Industrial Cats Sheet D-Cbi 33, National Safety Council. JJtt. Safe*7 News. 42, 36, 38 (August, 1940), The hazards of both substances include? (l) acute poisoning through respiration of tho f*s or vapors, or Ingestion of ths liquids; (2) chronic poisoning through respiration over a longer period of aall concentrations of the fuses or apors; (3) dermatitis due to the drying action of the solvents, and (4) fire ***& plosion. Both are good solvents for a number of substances used in Indus* tT7, such as resins, rubber, castor and linseed oils. They are both less toad.c thaA benzene but have possibility ogfcute and chronic poisoning.' The acute effects of toluene include hsadachor^yankeaness, vomiting, disturbances of equil^rtua, feeling of Illness ad2jhm*tiaot unconsciousness. In chronic caaelrMjlB signs m headach^middsnss, insomnia, lack of capacity for loss 0t^tf^stite^^usee|^MS)ng, and bleeding from the noso and gumoi Xylene to a lesser degree, Workers exposed, meterlal'Wuld bejgjmnplysical examinations before employment dag^fegular inter?ala, Nfaffud^gjS^Ulysis particularly if benzene Is Accepted local axhaus^u^nCpBew^ventllatlag systems should be isrojl^a* Synthetic rubber glosMTOdoLd be^imded. frequent air tests shouf^Se made, and supplimk&jn^sipi^jors ftffrnW be used in any the vapor concentre* tio^fA^sjfcr 20.\trs prewm^ns must be taken^^^)^ Porrarriauria In ajC^g^f iSsraialMethtfr^^ftlde Poisoning. J'.NJf.Chalaera 292 A.X. Oillam and J.X. X ^ l^ade (December 28? 1940). Ths case reported is thikt^ engineer, aged 38, who experienced severe methyl chloride po ult of exposure to fuus while at wo$fc, Dallrlia, convulsions and principal symptoms. Coproporphyrin series IIX was found in 1 n fecea and urine, disappearing with tho subsidence of toxic sihle origin of porphyrinj In such eases is fully discusML' - .deflnlte^e^dclusion, Recovery was complete at the end of 7 wseks^v^a^x of the preTiousl&iJpprted cases of methyl chloride poisoning hay n America. The 6^staaea^id widely used in domestic rafrlg erators. on ths y and*odnoerrv--moauksessiytstdemlfys&^ ult tg--^lyd/teca_t_p;_p_ie_tas_r gtore_rae_t_se_es_mt balect_tioh,_on_s_eis isrtaia nltro* and amino* cospcoou, as drugs of ths sul- fabcklMXS group, which probably act on thgAfrer erfere with ths normal )wn of hemoglobin, W fltroua fmea in ths Chemical Grinding of flleis^) Schr^<?7)Arbeitaschutit pp. 221*2 11940)* (German), :--~ : ................................ A new method for sharpening old files consists in ygr?of dipping thm in nitric acid. Nitrous fimes are generated In the proeoss. Injcne plant every worker exposed to the fimes was injured, one seriously. ^ s> 294 Water Spray es a ** fighting Respiratory Poisons. 20, 2-4 (1940). (German), Peuarscbutz, A spray of wetsr from a nozzle can be used to decrease the lu&drd to life from industrially used toxle gases that hare escaped from their containers (chlorine, ammonia, sulfur dioxide, hydrogen chloride, hydrogen sulfide, etc.) and to counteract the effeets from war gases. Ths efficiency of this "atomized'' water depends on ths solubility of ths chMlcals, adsorption, increased reactlv* ity, etc, Ths application of tho nsthod is described. 295 Air Conditlonlne in Zlaktron Metal foundries. Anonymous. Glesserel. 27, 347-3 (Septmaher 6, 1940), (German). This article discusses and illustrates principally ths methods end equipment employed for ths removal of sulfurous fumes resulting from electric furnaces in foundries. ,, Digest of Industrial hygiene 22 of mercury SrtMP*f manufacture of barometers tad other instruments, silvering of mirror*i aanufacture of chMlcal ctmpou&ds, vie* of asreury salts la trsa^ent of hides tad tha manufacture of fulminate cap*. 308 Zrperlaeatal Investigation on the Absorption of Mercury Tapors. foleo Dcmenicl. Haas. &ed. lad. 10, 703-11 (1939). (Italian). ficnChim. Abate., 34. 2934 (May 10, 1940). It wo* shown that wtaaa rabbits lahalsd mercury vapors tho nsrvous system and nasal passages aero affected, but latadftaal lssloaa appoared only la a aarll percentage of the salads but when^tffi^fj^ea satarad the digestive system tha typle^iateatlaol hemorrhagic lekum Mrs present. la this way aay be pltihmg/tp asrrp^v dlaorda^^euznag la easoa of sercury poisoning. 309 Occunatfafrfp>A< and its Detaotloa by Chtical Metho Xusnkele. >-32, 37-8 (1940) (Gorman). Tha chief itlonal araanlc poisoning aro red colorl- metric sat tioa of sraanle la tha deacrlbed. Tha effee basis rrtM chronic) arsenic polsoainm?ars eusaad on tha las agricultural and workers. Arsenic Indira head arsenic os 100-cc. of poisoning* aa per g. of the Lr aay contain 3.8 tiaas aaa per 100 ec. of urine gam par g, of teen observed. f 310 Self Poisoning by Cedrnlf 77-80 (1939). (German). Tha author, a chalet, having inhaled a coast aa irritating co Same. . Vergiftungjfall., IQai ica with cadaitB odde poisoning, dust end fimes. Tha synptema were .a ^u9spprfj Be recovered in 8 leys. 311 Pathology In tha Med.dal. Lavoro., 31. befibea in detail the &anu$s^tv^e soniag which occur la that d^(aaMtl< alnor ell wants other than aaagaasM^aoj of whom had worked longer than 2 ' batteriea and tha case of a year's obserrn- are suffered by the `"New Data fer Practical Deei^en af Ventilation folr* IfWfocottrroottjletK^llnngir. V.?. Battista, T. Batch and L. Greenburg. Saatlag, Piping, Air Condip- &i 81-3 (Tebruary, 1941) Because ell dLeetrolytlo tanks have conventional *shCPpe*>^ and proportional dlnensions, certain baslo fundamentals of daaign are applicable to all processes wherein dlssMl nation of contaminants makes control of'Wttlttion essential. This articla oonsiders fundamentals of tank ventilation wiv^referencs to pro portion and design. In usual practice, tha ataospherlo cd?iijn(inetlon is removed from, on electroplating tank try aeons of lateral exhaust vond&rtloa through slottod air clumbers or ducta along the two long sidea of thir'tank. Tha capa city of the exhaust ifitm should vary epprodnately with tha 1.6 power of the tank width rather then directly with tha tank width. The rate of ventilation should bs constant throughout tha loagth of tha tank, but that condition Is sot always achievable* The uniformity can be improved by use of manifolds of uni form cross-section with distributing vanes. 313 The Keglectod Danger of Baths Conta<*"ff gynwtde Salts, fatal Accident In the Sftra*Trtnft of Tools by Sodl Cyanide. Tichtl. Axboitsechutx pp. 237-8 (1940). (German). '' When an experienced worker pushed a tool through the cruet on the surfaco of a cyanide salt hath, the molten material splashed through the opening end many Digest of Industrial Sygieai - 24. 320 A Wow Industrial Ch^lcal Dom/itltls* E.O. Stingily. South Ued* J*, 33. 12SB-71 (Docmibori l*40l Sodlia tetrechlorpheaori.de la nployed to rlA lush*? of tt fungus that causes la- jury and discoloration* This chemical has been observed to cause a fairly characteristic dermatitis* Those affaetod cone la diract contact with tho aatarial la solutioa aad the lesions appear la the expooed parts of the body* The symptoms aro, first* a sensation of burning* followed by erytha and ulcar- atioa which nay persist for months Cenjunctivia Is froquent* No pathogenic organisms have been groi the wood* but It is suggested that a sec&d degree fungus infection ' sent* as tho aatorlal from the ulc Is agpole of local aato*laocMlntl< Treatment as yet Is not highly sat " toryr^&Otho a^fifir beligmTtAat curottage aad acetic wash has benef effects 321 Rubber Age. esses which are kuses are classified* ed, aad preventive is included* 322 4 Process* W, 117-0 f doxmatitia, listing soae of the apst especially by use of liquids aad 323 Constitutional Bez BcvJwitold of Frost) and the Question sf Ccgpenaatlon* Dermatol*Wchnachfr^t^O. 383-7 (1940)* (German), The author di occupational no6m, aad^therefore compensation, In two of fire cases, although In on*=a5^the twfj^hsro was a clear connection with t] on, because It later''w,^^ped:^wicharaetor of constitutional ac: shin tests were negatives'll autjnrcaphaalzes tbs fact that oust imitate tho clrcu&stnaceo^c^iaozkcr*f^ecupatloa sc far as e* la tho othor 3 cases the patch tsbjf^werm^os^tive* aad the occupa- nal coa&ectloa was clearly racognizable Constitutional Bczcma aad the Question of CmptM^aa. Doallkon* Donato1. Wchnschr*. 110* 437-ft (1940). (Caiman). The author ballcees that tho two cases rejectod by Kpph (Abstract No* 323) are unguoetlonshly occupational. Xa ono of them the patclfet^tt was aide too late, 2 years after tho occupation os a baker hod coded. Acceding to (German) court rulings, tho disease must be coopensatod in spite of a eogtjjlbutory constitution al weakness, provided tho disease is aggravated or aecalat$A by the occupa tional Influence; this ease Is evidently covered by this interpretation. Hany occupational diseases are not consequences of sensitization but aro caused by "wear and tear*; therefore, tho value of tho patch test should not be overrated. 329 Constitutional Betas and Rgpert Opinion* A* Valdtar* Daxa&tol* Wchnschr* m. 6BS-8 I19*01. In continuation of the discussion of cases published by Koch and Doallken (Abstract Bos* 323 cad 324) Welcker recognizos the one case as of occupational origin but not the other* Be refers to a case of eczma, existing for 6 years in a nan who ground and polished nickel plato parts* Tho occupation was very dirty* and tho worker had considered the dirt and dust as causes of the ecza&a. However* careful Inquiry shoeed thaV he also polished chromium plated parts and that ho was hypersensitive to all chralun compounds* Digest of Industrial Bjglene - 29. 326 Oeenastlo"*'1 P^--ntltls (Oil). C.G. Leas. Arch. Deiastol. hSyphil., (3oc. ^i^STjjuiuiiy) 1941) Tho author describee a case of dematltia la a nactlalrt, which evidently ku caused by tha oil which ha used la bis 40 years' esparlenee. Ia addition to a aiaber of araaa of daxnatltls, autopsy revealed earcincwa of tba esophagus. This typa of oU dermatitis la fairly eonoa la Engl wnrt but km la this coun try, possibly bacausa oils sployod bora aro loss carcinogenic. 32? Srporlnontai Pulmonary Cancor Iaduca^ffi ttho Rat by Respiration of Patroleua Ca^^|aa Casas. A.H. Soffo. 5e^^lak%T~azptl. estud. caaear. 16, Ho. 52, ) Proa Chsa. Abate. 34, 6333 _ t of tha work described la our abstrc^y^^.8 ts exposed to tha affaota of eoabusd^^gBhea from pulmonary tuaors, with sysptoas saLca^ti cations Tho author states that hydrocarhftbfgpfre responsible in tha lu&g through roaniretta^w combustion ugh abaorptloa of foo&'ffi>oaM^o thair tozle 328 Aocording to tha autho caaear la Bull. need, mad., evidence that tar dust ewer caused 329 Tha Carelnogonio Action of sds. Bull, assoc, franc, etude caaear. 23, 849-31 SO carcinogenic actlga^tihJ^oXed ,ifhin t various woods (chestnut, ok, poplar, etc.) wesjoflntod wiroe tinaa a 6 weeks on tha skin of tba backs of 40 whltfSoffw-'and on the la&d^.s -of tba ear of 2 rabbits, "alike oil tar, tha>flfcjed^tir caused ao toge-pfi rrboa, loss of weight, etc.), Slailarij^ai^ntrclflogenl c action was ^ ala, powdered cad made up as n ^raK&iateetrt la silica gal, a; of 20 nice; bowu*#r, zs thar^ukorat did not adhere wall to tha with It are not ccn- It Is suggested that tha abseace 0 activity of ocd ter to Its low tvporatura of dlatlUatlo: (hot over 400C), that tho carcinogen!o agenta of oil tar citation at toaporaturoa of shout 830C. Tuhors Produced hr Tar and Bonaocvrana la Amphibia. j? Koch, B. Sehrolbar and C. Schraibwr. Bull.asaoo.franc.otude caaear. 2_, 852-9^^.939). (french), tfatastinag skla ttawre wwra produced la edalt Triton oxf^atua cad T. tasaiatus by iajectlcm of a solution of 0.29 tsr la olive oil or hj^hjectioa oft 1,2-baozapyraoe solutlas obtslaod by algae (1:10) olive d a 0*025 IS?) solution of 1,2-baasopyraaa la bsazans sad than allowing tha^dasana to evaporate 331 Biological Considerations on Raala Caaear. X. flrkat and A. Kdtar. Bull, asaoo. fraao. etude cancer 29. 24-35^1940). Tha 1,2-boazaatlBwaa and 3,4-banzopyrana coatasta of various raalas, datarmiasd spoctrogrnphlcnlly, wwra as fallowat British resin 2 end 0.3)6, German ream 0.8)6 aad trneoa, Cockarlll raala 1 and 0.2-0.3)6* ougree rasla 3 aad 0.3-0.H. Despite tha presaaoa of thaao cnrclnogtaio agenta, workers la Liege exposed to raala did not show a higher cancer Incidence than tho gnarnl population. Digest of Industrial QtcIom - 26. 332 Shpuld Coronary Pimu d Hreertenslon bo a Cause for Rejection In laduarrY? HJM.-Bobaenan. 7. Am. Hod. Assoc. ^6, 209-13 (Juuaxy,'1941K ~ Coronary disease and hypertsnsion la workers present e Aihmmm ia that they are not industrial la origin but restrict capacity for laborious work, aad it is difficult to Judge what procedure Is fair to tbs ployer, the worker aad ths insurance company. The bast mothod for industry would ba to adjust at once tha t.wrk of any of Its smployees who over a period of yoars develop symptoms of thasa diseases. Za ease of applications farf Aploj&ent, an electrocardiogram will aid la deterairlng ths probable axtai^^^^jury present, and speelal Jobs may be foiyj^at which ths subject may nSto-Tioric. In soma states a walTer may bo, [Jwhich elesrs ths anntaxer mrrospoasiblilty. Tha laws could pro] tlllty of ths wployer aad therefore mplaj* jHHcnslvc or coronary disease. 333 a Progressive Aacila. C.J. IntHed., in drculi ihetlsed dogs* Tolimes to about 12%] lraly below 12%. volume decreases to ? scute congestive heart f; dlim* It probably keep pace with ths re; supply of oxygen to t solely eoadl- nary ventilation and en-carrylng capacity an Increased hi The mechanic of the sly orlssate on slightly pro* ase In respired oxygen aglns when the volwe la progrsee- given In the paper* When oxygen ; ry crisis ensues* It Is essentially an t^depressent affect of anoxia on the myocar- tt^^creaslng ocronery flow eon no longer ltd Lon of o^rgen In the blood. 33d Visual Efficiency MAdustry. 7.A&Jted.Assoe., U6, 1349-1355 (March_29, record. acuity, with and^wijhout of ell Industrial workers The eatahllslBsnt of ' '"x/ of visual efflcleaey for Pupations is necessary. It the Anerlean Medical ilea appoint e committee for thsv blem. This ccsmlttee aid In ths correction of faulty sequelae of eye in- _ nos is discussed, some of which may ^ ,t refractive errors* The conservation of eyesight In industry dep44& upon ostlng the eyesight of applicants, {2) examination of the eyes of thol^ defective vision. (3) proper placmerrt o.f workers with dsfoctlve ^ _ (4) proper Ul\Blnatlon without glare, (*5) eduoatlon of workers regerd"lng'h'e%hrds to the eye, (6) pro tectlon of in hmsardous Jobe, end (7) prompt trega^wit of ocular injuries. 335 Protective lodtment for Ives In Industry. HJ* Cflrmen^0yimJied.Ajsoc., 116. 134S>1348 (Harsh 29, 1M1). y injuries are preventable -- tho experience of a large industrial concern over 10 yearn shows that this is possible -- 22,000 sployeee having been saved from lose of eight or avon partial loss of vision* It has been estimated that 15% of the blind of America have lost their sight because of. occupational hazards* About 2,000 eyes are lost in industrial aocidsnts each year. Ths author outlines ths mstbod for instituting s oaaplete eye protection sernce In any plant, providing for preliminary visual enmlnatlons of employees and a sur vey of the plant* ?here is e lengthy discussion of mschnnleel protective de vices, especially goggles cf all sizes sad types* Safety devices on machines, 111ret nation end ventilation arc briefly considered* The-author Intimates that there is little Information available on the eye hazards of Industrial poisons* Digest of Industrial $rslsaa - 27. 336 RyUrtloa ta llfctrle Are Welding. J, May. Arbeitssehuta, pp. 117-9 (1940). (Otrstt)* . The author reports os tha investigations udi by LaCosta {Abstract no. 399. 1940) la hia own investigation of elactric aniline ha found only tha aiaa raya aa la carbon are welding, ao x-rays aad no gave my*. 337 Industrial laiurlaa to the Bra. 3. Talker cad E.L. Autaa. J. As. Had. Assoc., ilfi, 1356-1397 (llareh 29. 1941) It le important to detemlno the vlsu^heulty at the tine of'the first visit, tad lajthe Injured eye first. IaJj^pajjailch appear trivial are often potoatii 17 Sially la tbs pras&K# of focal infection. Tha use of a atlc iting tl^^pilraftar rcsoral of forel^ bodies fron< cornea * comae affords tho patient cosfort ditae itches tend to produce infection by secretions' used* In doubtful cacao, the plaatvP'2) Hen will do wall to tt rar to an ocullet. The authors prjs of 1900 casoi typee of leelone. In their nertdirof acre than 100,000 bodice have baaa tha cajp$lveH$cat in 4Bjf. ____ The appearance oft disapproval of lte coal azprassas ao opinions, entitled "An Abortive for for this year. Tha Medical dosage of tincture of ic in phamacclogy, with tuberculosis .^amouri; cr to consult thel^QpiSwuas before abstracted ar dose not istply approval or. The Digest nerely reports. Iff cite the Instance of Abstract #201 .* which appeared la the March issue r eenpeay points out that the ee of that given by two textbooks would be dangerous in Individuals disit&tft* Our lay readers are advised ___ __ sedlcatlca mentioned in