Bui. 739, U. S. Dept. of Agriculture. 
Plate I 
S~=.. \-::z > a . 
Bacteria and Solon amort per cutis csatd 
111? (: 
(-■■ 
Cq-.vt 
C,t :™ 5 
tela 
v 
Cgis-.- c 
'~. ( OC-C 
Colon- C 
iCc-r- 
Sediment Disks from Pints of Milk Produced in Dirty Barn with Uten- 
sils not Sterilized but Washed at Once After Previous Milking. 
