84 STORRS AGRICULTURAL EXPERIMENT STATION 
The cover carries an oval shaped opening partially covered 
by a sliding hood. This hood is movable for the purpose of 
regulating the size of the opening into which the milk is | 
drawn. The form of this opening can be better seen in Fig. 
37 representing the different parts of the strainer attachment 
used in the pail. In the tests given in Table 19, however, this 
strainer attachment was not used. These experiments were 
simply to determine the efficiency of the pail with the cover 
in comparison with the same pail without any cover. The 
results show that this form of cover is about as efficient in 
excluding contamination as the Stadtmueller pail just dis- 
cussed. In these experiments the milk from the covered pail 
Table 19. 
Tests with Haymaker pail compared with open paul. 










Date shine. of Peat acter nésteria’o} Sees 
jaiad 8 BEC the RUM i Piercy 6 Open °2,050 708 42 
" S tah mere Covered 208 96 33 
Bee OL Ce eae anata Open 1,258 300 137 
SS s,Q Aemndi Covered 758 229 13 
oS OT aah ean Open 3,123 663 ba 
Tyiged Wied ctl Bes Covered 237 78 20 
83.0 BBast gs tre ween Open 633 46 79 
HEE Rowe sere hae Covered 150 42 0 
Re ENT i Mate ae By Open 1,000 207 50 
FURAN ES BPN of ARES Covered 63 30 10 
AV CTaACe on es Open 1,610 Out 84 
Covered 280 95 15 





Average for open pail. 

Average for covered pail. 

) Difference in favor of covered pail. 

contained decidedly smaller numbers of bacteria than did the 
_ milk drawn into the open pail at the same milking. The same 
method as described in the preceding series of tests was used 
for getting these samples; namely, one cow was milked into 
the pail with the cover and another one into the pail without 
the cover, the order of milking the two cows being reversed 
at the different milkings. The numbers of bacteria contained 
