. The story of the exposition; being the official history of the international celebration held at San Francisco in 1915 to commemorate the discovery of the Pacific Ocean and the construction of the Panama Canal. cate the hookworm from Zealand, China, and other countries started investigations. The Pan-American republics were interested. It was the sharpest attack in forceever made against this slow plague, and only an exposition could haveoffered the opportunity for it. The Federal Governments Department of Labor, the Museum of Safetycooperating, showed by means of charts, and b
. The story of the exposition; being the official history of the international celebration held at San Francisco in 1915 to commemorate the discovery of the Pacific Ocean and the construction of the Panama Canal. cate the hookworm from Zealand, China, and other countries started investigations. The Pan-American republics were interested. It was the sharpest attack in forceever made against this slow plague, and only an exposition could haveoffered the opportunity for it. The Federal Governments Department of Labor, the Museum of Safetycooperating, showed by means of charts, and by wax and plaster modelsthe occupational diseases and injuries against which society has begun toguard its workers. Lead poisoning among painters and paint factory em-ployees, the effects of coal mine dust upon the lungs, and of hot lime fumeson the eye-balls, the results of potassium, wood alcohol, and carbon monox-ide poisoning, were indicated in their fruitage of disease, incapacity, andwaste of national energies. The charts showed the percentages affectedout of those employed, and suggested the protection and remedial measuresnecessary for dealing with the evil. It was the first time any adequate pre-. tL,it«IE!|!^ CONSERVATION OF HUMAN VALUES
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Keywords: ., bookcentury1900, bookdecade1920, bookidstoryofexpos, bookyear1921
