Of these, 100 operators, hired ir<or to January 1st. 1926, were included in this study.

This m9*zin it pubiitiiad to promsit tomd Hiouqlrt upon and eoncaminq industrial madicina and traumatic surqary.

This m9*zin it pubiitiiad to promsit tomd Hiouqlrt upon and eoncaminq industrial madicina and traumatic surqary.

Hefferman Patrick Exposure to Silica Dust Without the Occurrence of Silicosia Journal of Industrial Hygiene Vol 8 No. 11 Nov. 1926 4.

Journal of Industrial Hygiene, Vol. 8, No. 11, Nov., 1926

Cooke 16 in 1924 reported a case of pulmonary asbestosis Pancoast and Pen- dergrass 83 in 1926 examined group of seventeen asbestos work- e Since then other investigators have reported individual cases of asbestosis but it was not until 1930 that Merewether and Price 74 published the results of a study on a group of asbestos work- ers together with some evaluation of the degree of exposure Lanza McConnell and Fehnel 66 have recently published a preliminary report of a comprehensive survey on this subject preliminary The industry in this State consists mainly of several brake fabricating plants engaged in the making of asbestos cloth lining in- sulating tape asbestos rope and wick and other miscellaneous prod- ucts According to the 1931 Pennsylvania Industrial Directory 61 there are approximately to thousand persons engaged in the manu- facture of asbestos products in Pennsylvania be The nature of asbestos dust is such that many of the standard procedures used for other dusts could not used Changes in the required accepted standard method were in the collection count- of ing and particle size determination the dust In Part I of this collection report +1 the method of and counting of dust en- countered in this study was described and summarized * ber of dret lakro In plants for fabricating to s mond Investing mum muMmilvitnu Milvitnu thed ante ot the Psoria metho Log 6 Inis Zunifuva tte pestives tery veil th TII Qtilizmi 40 the com BS pcnt pcnt . 3. 2001 eTOMeratwre TW collin P.

i93i TRANSACTIONS National Safety Council Incorporated TWENTIETH ANNUAL SAFETY CONGRESS Chicago October 12 to October 16, 1931 The Hotel Stevens Copyright, 1932, Xationol Safety Council, hie.

S C -A L L -0 1 225 25th National Safety Congress NATIONAL SAFETY COUNCIL, Inc.

Pancoast and PSn'dergrass (83) in 1926 examined a group of seventeen asbestos work ers.

*93* TRANSACTIONS National Safety Council Incorporated TWENTIETH ANNUAL SAFETY CONGRESS Chicago October ta to October 16, 1931 The Hotel Stevens Copyright, 1932, National Safety Council, Inc.

I93I TRANSACTIONS OF THE National Safety Council Incorporated TWENTIETH ANNUAL SAFETY CONGRESS Chicago October 12 to October 16, 1931 * The Hotel Stevens Copyright, 1932, National Safety Council.

FILE NAME: Trade Publications (TR) DATE: 1936 Feb DOC#: TR012 DOCUMENT DESCRIPTION: Trade Journal - Mechanical Engineering John D.

leads to the use of DAVIS SAFETY EQUIPMENT Cover to protect swab and keep it clean.

leads to the use of DAVIS SAFETY EQUIPMENT THE IMPROVED ANTISEPTIC SWAB Cover to protect swab and keep it clean.

FILE NAME: National Safety Council (NSC) DATE: 1936 Oct DOC#: NSC440 DOCUM ENT DESCRIPTION: Transactions of th e NSC - 25th National Safety Congress 2 5 th National Safety Congress N A T IO N A L SAFETY COUNCIL, I n c .