Bui. 739, U. S. Dept. of Agriculture. 



Plate III. 



-£mall=iap -pail ._ 



Bactoria and colon coun 

 JOpao— paJ-L. 



t per cubic conti/aator. 



.finiB] l-ti)p pail.' r Open p al \., 



b'J 0,000 



310,000 



Colour — L22_ 



i Colon- 9QQ 



3,300,000 



1,800,000 



Colon- 1 , 3flr> 



Colon- 100 



190,000 



230,000 



1,170,000 



t,440»Q0Q 



/ *.£ 



CpTon- — .jtiol on- 3ry) 



132,000 j 340,000 



\ *4i ' 



570,000 



[ Colon- Q 



630,000 



£ali)3= 20£L 



670,000 





colon- aao_ 



: Colon- 300 



1,300,000 



1, 700,000 





Salont i-JL 



670,000 





fiflian-^JU-loa— 



a2o,ooo 



fialna= 3no 



1,120,000 



» 169 



Colon- 100 



Cnlnn- ] t qr)f) 



1,840,000 



Colon- 900 



Sediment Disks from Pints of Milk Produced in a Dirty Barn with 

 Utensils not Sterilized and not Washed Until 8 Hours After 

 Previous Milking. 



