* ASBESTOS FIBER "ASBESTOLOGY" WITH WHICH IS COMBINED CANASCO NEWS ISSUED MONTHLY Dealing in concise form on the trend of the = CANADIAN ASBESTOS INDUSTRY = and containing other items of interest to the Asbestos Trade Number Eleven J'ioVEMBER 1928 | J Volume Six There is no substitute for ait* The most important non-metallic mineral.

Dr.

102 OCCUPATIONAL TUMORS AND ALLIED DISEASES Gas Works: Other Industries: 55 cases of epithelioma 75 46 cases of epithelioma 35 21 deaths 1920-1927 38 1933-1937 6 deaths 1920-1927 7 1933-1937 Including the cases which occurred during the year 1929, the percentage of fatalities from tar and pitch cancer among English workers affected by this disease presents itself as follows: pitch cancer: 336 cases with 11 deaths} tar cancer : 602 cases with 112 deaths.

112 OCCUPATIONAL TUMORS AND ALLIED DISEASES mice with lowered vitality, and suffering from severe, general poisoning by tar were less apt to develop skin tumors than animals vitally unimpaired.

CANCERS OF THE RESPIRATORY SYSTEM 421 %ft merely to some occupational groups, but to the great masses of people of all I industrialized countries.

mm.

Page 2040 1 preceding the Merewether article.

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