EFFECT OF TEMPERATURE ON BACTERIA. 47 
EXPERIMENT NO. 3, APRIL 20. 
The conditions of this experiment were identical with those 
of the preceding. The sample of milk kept at 37° curdled in 
18 hours, that kept at 20° curdled in about 4o hours (in the 
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night), and that kept at 10° curdled in 13 days. The detailed 
results are shown in tables 7-9. Plate II. shows graphically 
the facts brought out by the tables. 
