Man as a working machine held the attention of the American Institute of Mining & Metallurgical Engineers at their Manhattan meeting last week, just as he always interests every user of his productive capacities. The particular question which held the engineers was what condition of airtemperature and humidityis best for man's work. Dr. William John McConnell of Metropolitan Life Insurance Co. told them.
The best general conditions are: temperature range between 40° F. and 75° F.; humidity 60.* Because individuals respond with varying ease to changes of humidity and temperature, the individual...
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