Brown, Soereury __________________ _ oca of the leading pro ducer. of sheet or ertsdow glase. eeld under In 1947, Jointly with Koope---n----C---n-,- Inc.

Some of the more important papers, describing the conditions in different countries and different occupations, re late to the Witwatersrand goldmines'; the Schauinsland mines (gneiss quarries) *; the Joachimsthal pitchblende mines*; the "Tri-State district", a zinc and lead mining district in Oklahoma, Missouri and Kansas4; and porphyry quarries.* Several investigations were made among coal miners, especially among soft-coal miners, who inhale coal dust mixed with quartz dust.

LEADED GASOLINES D uring th e p a s t y e a r some s e r io u s c a s e s o f le a d p o is o n in g have o c c u rre d among f i l l i n g shed o p e r a tiv e s due t o e x c e s s iv e in h a la tio n o f th e v a p o u rs from le a d e d g a s o lin e s owing t o war c o n d itio n s .

If for any reason, it is undesirable to show the chemical name, or if the chemical name ia so complex us to ba meaningless except to the trained chemist, the lube] should state the type of chemical, e.g,, "eoryo- sive acid," "lead compound

*D"'*" <* Dlvialoo Lead Co. 838 W Kinds SL Chicago *3.

- hydrosphere, the transfer processes will lead to a wide distribution of these compounds, with aerial transport playing a major part.

100 0.5 Cadmium 24 0 100 0.1 Chlorodiphenyls : : Chronic acid 28E 1 92 0.1 28E 0 100 0.1 = cece cee 1.5 Dinitrotoluene eeee 28E 0 100 Lead occ . 28E 0 100 0.15 Mercury cece essere . 28E 0 100 0.1 Tetranitromethylaniline . 28E 0 100 1.5 Trinitrotoluene ccs 28E 0 100 1.5 Zinc oxide ... 20 1 95 15.0 Asbestos 17 0 100 * ae Parts of substance per million parts of air by volume .

CONFIDENTIAL DEALERS' NET PRICE LIST No. 37 EFFECTIVE JULY 8, 1949 Subject to change without notice * NEO.U LMT.CfF. mm PAINTS VARNISHES IACOUERS ENAMELS CAMPBELL PAINT & VABNISH CO.

Serial No. 31. 1250-Kw.

Serial No. 31. 1250-Kw.

leading lope of the j pionshij) fneiM- liere Huh*; Imm ^euiitug \o ih nr.- without waiverk plnvtu Were subject to the, Ja .King innrh; Our Hoots, owned draft by the big Inagpe c' Held oil Eve of Net War bv Wnodvnlc forms olid wJ Ariel Champion of S7l..ll ;is a two-yenonld, and The order, winch Rreadn had been sent ail club ol \\ beoflrv stable's Bold Irishman, I T W rehifUaios the oM I*\\ \Df i\. v y RiUvT- ar.a D' \U .'

' (a) Emergency (b) Non-emergency The emergency typo of respirator is dosigned to be used where a person cannot exist and not become physically harmed for oven a vory short inter val of time, and is to be used, as the name implios, in emergency eases, such as fires, explosions, etc* Location of this typ of apparatus is im portant, since it may bo roachod and put on quickly in oaso of trouble* Emergency respirators ore usually solf-containod and aro not designed to work in easily or long but to sorvo the usor with oxygon or clean air, al though ho may be in a highly toxic or suffocating atmosphero* Tho group of non-emergency types of respirators are the kind used for general factory work where it is necossary for a man to work in atmospheres that might provo harmful to him if ho worked in this exposure over long periods of time* They aro dcsignod to render the air which he breathes clean enough, so that no illness will rosult from his occupation no matter how long ho works at it* . 1 Somo non-cmergoncy respirators arc merely air filters, removing only irritating, solid particles from the air* In using those rospirators, caro must be takon to have the proper respirator for tho type of dust in the atmosphero* Many of these respirators arc good enough for non-toxic dusts but arc not effective enough against toxics, such as lead, to prevent illness* ' Air containing snoke of finely suspended particles must be loaned through some special typo of filtoring or absorption, as well as air con taining vapors and fumes* It is tho problem of manufacturers maldng this typo of equipment to develop an all-purposo respirator but, since no such mrko of the non emergency typo is available, it is necossary that each problem bo studied carefully and tho proper rospirator usod for tho condition under considera tion* One of the biggest problems facing manufacturers today in regard to keeping thoir anployecs well is making the employees obey instructions* In the eases which wo aro now discussing, the problem is to mako the em ployees wear the rc-spirators* In issuing respirators to employees, some dofinito form of procedure should be followed: (a) Explain to the employee why h is expected to wear protective oquipment* 0 G '3 1 4 (b) Teach him to breathe properly in it.

Hepatic microcirculatory changes leading to portal hypertension.

I t was b ro u g h t to th e a tte n tio n o f the doctor th a t th is p a in t d id not contain any lead but the doctor s ta te d th a t n e v e rth e le s s th e claim an t c l i n i c a l l y had le a d p o iso n in g and he gave him the Aub tre a tm e n t which a p p a re n tly d id n o t have any pronounced b e n e f i c ia l e f f e c t s .

This type of wire is used in electrio ;*es, motor leads and fluorescent light fixtures.