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THE POPULAR SCIENCE MONTHLY 



The Ideal Workman. By Professor Hosaelus, Berlin. 



The toxic substances contained in alcohol, tea, coffee and tobacco and 

 their influences on longevity and human happiness were all exhibited in 

 a most tangible form. Table and kitchen utensils of the most varied 

 composition and form were shown in separate cases. 



A special group was devoted to housing, showing the best methods 

 of heating, ventilating, illuminating and cleaning our dwellings. 



In the grou23 of occupational hygiene the visitor was shown the dan- 

 gerous influences to which workmen are exposed in the different 

 factories and the beneficial appliances recently devised and put into 

 operation to prevent them. 



The visitor was thus prepared to pass into the section in which the 

 common infectious diseases of man were shown, how they originate and 

 how they are best prevented, at the same time exhibiting busts of the 



