Document 5kEvdYGxmVj4VO0dZmnyJje8e

czoiocical luftvrr or Canada DEPARTMENT MINES am TECHNICAL SURVEYS Ottawa, Nsro&ber 25th, 19537* Mt, C. P, lipp. Supervisor,Insurance, United States Gypsun Company, 300 West Adams Street, Chicage 6, Illinois Dear Sir: Tour letter ef November 16th addressed te the Department ef Mines and Technical Surveys has been transferred te this Division of the Geological Survey ef Canada for attention. In answer to you enquiry re - asbestosis, I wish ~ te advise you that the best publication on this subject has been issued some years age by the U.S. I,v,i,1"7l *+*,*,,+1 r Service, Washington, 'DICTTMa r-TT** 1m a a i.niTir m arssstqsiS TO THE AHSS'IUS ThJLTHE* INDDSTRI", Public Health Bulletin No. 241. At the end ef this bulletin you will find an annoted bibliography listing the titles ef acme 63 papers referring te asbestasis and which will give you further information on this subject. Tours very truly. Sugen'e Poltevin, ' Chief, V \ Mineralogy Division.' r\'*