Abstract
During the past year we have examined at intervals of about two weeks the fecal bacteria of each individual in a group of twelve men who were the subjects of a prolonged metabolism experiment. These men were fed a mixed diet, in quantity according to their choice at the beginning of the experiment. Altogether we have examined bacteriologically 266 stools.
The quantity of bacteria in each of these stools was estimated by two different methods of microscopic counting and in about half of them the quantity of bacterial dry substance was also estimated by the gravimetric method of Strasburger.
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