carry ut etcaree and.investi- Lattone osa tao pijyelQlGgy and tOKlcologjr et lead accorpile in .

Bituminous SWITCHES, Float 1059 Armstrong Cork Company, 1060 Celotex Corporation, The, 1062 Eagle-Picher Lead Co., 1063 Ehret Magnesia' Mfg.

Norfolk-- Lead-- Cox, V.

., 1142 Eagle-Picher Lead Co., 1144 Johns-Manville, 1148-1149 Ric-wiL Company, 1138 Ruberoid Company, 1156-1157 REFRIGERATION CONTROLS {See also Controls) AIco Valve Company. 1019 American Blower Cbrp 884-885 Armstrong Machine Works. 1108- 1109 Automatic Products Corp., 1020 Barber-Colxnan Co., 1003, 1021 Carrier Corporation, 888-889 Cochrane Corp., 1110 Detroit Lubricator Co:, 948, 1022- 1023 .

In using those rospirators, caro must be takon to have tho proper respirator for tho type of dust in the atmosphere* Many of those respirators arc good onough for non-toxic dusts but arc not effective onough against toxics, such as lead, to prevent illness* ...

Annual Report 1949 Th e Sh e r w in -Wil l ia ms Co .

., 1046-1047 Eagle-Picher Lead Co., 1100 Frick Company, 956 Hastings Air Conditioning Co., 911 Lau Blower Co., 968 B.

., 1027 Eagle-Picher Lead Co., 1032 Ehret Magnesia Mfg.

.; 903 Eagle-Picher Lead Co';; The;1127 H/X-SomMs/Inc.-, 908-909 / .\ Supreme Air.Filter Co.-; 910 ' ^^/^FANS.'.Supply and'Exhaust ' ^^^Alr^Controls,,Inc., 938 Westinghouse ' ElectricElevator Co.

., isoa FLANGES, Lead, Roof FEED WATER REGULATORS (See Regulators, Feed Water) FITTINGS, Flared Eagle-Pioher Co., The, 1357 GrinneU Co., Inc., 1077, 1218-1219 FEEDERS, Boiler Water Crane Co., 1250-1251 Cyclotherm Corp., 1280 McDonnell & Miller, Inc., 1294- 1295 _ _ Warren Webster & Co., 1332-1335 Mueller Brass Co., 1100-1101 FITTINGS, Hot Water Heating Systems Jas.

Polyvinylchloride varying in molecular weight from 45,000; 70,000 to 105,000 stabilized with one percent of lead stearate was used.

FILE NAME Newspaper & Magazine Articles NMA DATE 1946 DOC NMA112 DOCUMENT DESCRIPTION Journal Article - Dangerous Dusts - Science Digest ern oe aE = pe what thisthis changichanngigng worldworld means means means means means toto youyou you InsideInside Back Cover 48 Back Cover man may live near the railroad tracks all life Be Wy: *:--} remembering pneu moconiosis Silicosis is and inhale the black soot of the but one of them Over one million passing trains day after day without any damage to his lungs Carbon from train smoke may make workers in the United States today | are exposed to one sort of dust or another Pneumoconiosis is a major his lungs black as pitch and yet they will continue to function normally He hazard in many industries BS Silicosis is the most common | may live till the age of eighty or ninety only to die of some disease of his heart or intestines or some other organs In spite of their blackness the vitality of his lungs may be spared On the other hand there are many instances where coal miners are perhaps most lethal of ; pneu- moconiosis But don't think that it is . disease exclusively of coal miners No- indeed Possible victims of the disease | are those persons who are engaged in mineral grinding rock quarrying stone cutting tunnel driving fire : equally exposed to a carbon atmosphere succumbed to serious impairment of their lungs at the age of forty or fifty If the lungs of these men are examined mortem they too will be found to be heavily stained with black pigment Why do these men die What is the difference between the carbon at the railroad tracks and the carbon in the coal mines The answer can be found brick manufacturing foundry work and the manufacture of tile and abra- .

Polyvinylchloride varying in molecular weight from 45,000; 70,000 to 105,000 stabilized with one percent of lead stearate was used.

Joseph Lead Company and Chairman of the Foundation's Board, in a recent communication to Member companies announc ing the new facilities, said in part: "In addition to our routine plant and field studies, we propose to develop at the new Laboratory an organization for the primary uBe of our Members along the following lines: "1.

The Factories Act lead-poisoning from 1900 to 191G.