The loss of this substance may lead to attacks of cramps, unless the salts are replaced in the drinking water.

Its design is well known to all leading heating and ventilating engineers but we would again like to point to the importance of "Permanent protection."

.___........................ 1018-1019 860 INDEX TO ADVERTISERS E [' Page f Eagle-Picher Lead Company, The, Temple Bar Bldg., Cincinnati, Ohio.................. 1098 Ehret Magnesia Manufacturing Co., Valley Forge, Pa.................................... 1096-1097 !.

It is impossible to install a water gage glass on an inverted bucket trap, but if visual inspection is necessary, a gage glass can be placed on the line leading to the trap.

The following is a description of such a survey s&'Sjjjji. made in a program for controlling the lead hazard in a brass foundry at some '.7[i^j^.Vh|tance from the industrial hygiene laboratory.

That is, if there are a number of openings available in a building, but all are at the same level, there will be no motive {lead produced by temperature difference, no matter how great that difference might be. . 7.

Superheated Steam: See Steam: Supply Mains (Steam): The pipes through which the steam flows from the boiler or source of supply to the run-outs and risers leading to the heating units. .

The greatest dust risk occurs in the grinding of natural graphite, for vhich evidence is presented to shov that this can lead to

Ovsnm-Illinois Class Coauaiy, in cidentally, played e leading part in getting this organization started.

Tha flazaaad orop vaa abort thla yaar and praotloally all of tha flaxaaad and oil balng laqportad fro* Argentina la raportad balng aant abroad, or at laaat It vaa vhlla Lead-Leaae vaa la affaot.

This study would lead to improved benzene-driven, health-based regulatory standards by providing the regulatory and scientific communities with information for more accurate assessment of the risks from exposure to benzene.

Each 13.8-kv generator lead is tapped te supply a station-service transformer bank of three 3,334/4,444-kva single-phase 13.8-' 4.16-kv transformers.

Dwyer: the ftUttli* la a lUI t xalatlra te the Oeteher, Kart Chiaage plaat: h a d Hirorap epaeatioas at the the losaas for tha aoath: 1m4 Sflaary Biaeath Boflnlag # io.rsi.ao ws.u Dartac Oatehar, tha Laad Bsflaary t; tear la Bay taatiir aad aa araraga of 3,3*0 tona this year, this aeaawally law tonasge~eaa~~3fta te Balllaa, te* aatarlal taraatad bal taas as eoeparad with 1,M th for the first alas aoaths of mag say lea Biaeath teeele . . high Blsaath Toaal test Balaai Sarah lead Battery Pi total ig teas SO# 11 1790 ta hy the faUeeiag adraraa faetere* yeedaaed ae aatlaaalal laad) Mag aeets dae te lee repairs < tire brisk to tooole h.0 3,600 l.MO (60 *e had tea finerahla faeters afcioh affeetad oar lseoea to the #T,000. tae eas laaraeaiag sar *Ia Preaaaa expanse' hy #1,00(3, rasnltlag fraa altarlag the la preeeea aaet of flnlshad anode natal free #8.8d par toa to #13.00 per tee. the ether eas eeraiag.a #8,000 nae aaosy prefit hy the treataaet of the Old teas sf hattsry plates.

This adds up to a good job -- and "one good job leads to another!

It does not lead to disability or infection. (5) In estimating the possible effects of any given industrial substance, it is necessary to know its chemical nature. (6) It now appears that certain silicates which were once considered as inert may become noxious when subjected to high temperatures. (7) Certain metals when subjected to high temperatures, liberate their oxides which may produce chemical pneumo nitis. (8) An industrial environment per se does not induce tuberculosis. -- Author's summary 289 Pathogenesis of Industrial Pulmonary Disease.