290 SCIENCE AND PRACTICE OF CHEESE-MAKING 



WATEB BOILS 2!2. 



BLOOD HEAT—. 



WATER FREEZES 32— = 



— 



ALL GROWING BACTERIA 

 — KILLED^ 



-GROWTH CEASES. 



?-GROWTH MOST RARD. 



-GROWTH RCTARDEO. 



— JSROWTH CEASES. 



FIG. 43 — INFLUENCE OF TEMPERATURE ON BACTERIA ORDINARILY 



FOUND IN MILK (Rogers). 



