I0O STORRS AGRICULTURAL EXPERIMENT STATION. 













TABLE 31. 
vu. bo 
We s OD Roms: 
eh oh =u hats 
AGE OF MILK. sate aie i: ae 
Bg “3 We a 
-Q —Q 2s aie 
< 
Fresh, ASR cats eh MA Sco 12,550 1,250.4) 10 200 
3 hours, - - 2 - - 12,250 2,000) | = 10 200 
6 hours, - - - - - 19,650 PAAP LAS Wald Le: 800 
9 hours, - - - - - 56,900 20, 260) a sO 550 
£2 hours; -= - - - - 114,250 68 , 400 60 I, goo 
TABLE 32, 
a 
oS bn 
a i eo cas 
ce we 2O ae 
AGE OF MILK. oe os 38 ‘Oa 
ag “3 ae a 
ea pQ. oF 8 
< 
Fresh, Sahl ate ue earth fe 2,542 375 15 305 
3 hours, = . - : B 2-310 610 26 265 
6 hours, - = - - - 2775 675 24 275 
g hours, = 2 . 2 = 6,250 T5625 26 525 
r2-NoUurs.) — = = S = 20,850 5167 25 2,667 





per cubic centimeter, showing an increase during this period of 
750. ‘The acids at this time constituted 16 per cent. of the total 
number. ‘This means, then, that while there was an actual 
decrease in the total number of organisms present in the milk, 
this was not brought about by a dropping out of all of the dif- 
ferent species, but of certain of the non-acid producing ones, 
since the acid organisms increased from the very outset. Dur- 
ing these first three hours, while the acid organisms were 
increasing 750, the non-acid species decreased 1,050. At the 
end of six hours the total number had risen to 19,650, and 
continued to increase with considerable rapidity throughout the 
remainder of the experiment. At the end of six hours the 
number of acids had risen to 2,250, and now comprised 23 per 
cent. of the total number. At the end of nine hours they con- 
stituted 36 per cent., and at the end of twelve hours 60 per 
cent. of all the organisms present. The non-acid organisms 
found in this sample of milk were a miscellaneous lot of organ- 
isms, which apparently did not find the conditions afforded by 
milk suitable for their development. They, therefore, did not 
\ 
