114 
STORRS AGRICULTURAL EXPERIMENT STATION 
FOURTH TREATMENT OF THE MACHINES. 
A series of experiments was therefore conducted in which 
the machines, together with all the rubber parts, were sub- 

TABLE 28. 
Mathines washed as before, 
Third treatment of machines. 
pail and cover sterilized in steam. After washing all rubber 
tubes and teat cups they were placed in a 24% per cent. 
solution of formalin till needed for use 

Date 
Dec. 
Dec. 
ec. 
Dec. 
Dec. 
Dec. 
Dec. 
Dec: 
Dec. 
Dec. 
Dec. 
10 
10 
11 
18 
19 
19 
20 
20 
21 
22 
Dee..22 
Dec. 
Dec. 
Dec. 
Dect 
23 
23 
24 
24 
Averages 
1905 
9 
Number of 
Ww 
= Experiment 
318 
320 
324 
347 
349 
356 
358 
365 
370 
372 
379 
381 
383 
385 
387 

Method of 
Milking 
Hand . 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand 
Machine 
Hand: 
Machine 
Hand 
Machine 
Hand 


Machine 
Hand 

Machine 



Time of 
Milking 
i) 
a 
ie Lap: SI Sac aah oi acaney cae sg me a as oD ee a 
SSEEKERKEREREEEEEEESEREERER RE SS! 


Total 
Bacteria 
6,400 
320 
19,300 
3,875 
38,900 
3,490 
8,230 
2,000 
4,400 
2,540 
16,820 
16,440 
104,300 
101,400 
12,230 
20,500 
2,990 
3,300 
5,040 
8,600 
39,360 
29,080 
3,020 
3,025 
21,050 
114,400 
8,500 
6,420 
10,260 
18,150 
2,080 
16,400 
20,225 
23,329 

Acid 
Bacteria 
1,760 
65 
4,770 
pals Log 
3,015 
1,500 
2,100 
375 
1,150 
1,860 
5,760 
4,040 
4,700 
1,550 
4,040 
10,280 
950 
880 
1,780 
6,900 
38,600 
7,325 
830 
570 
5,200 
79,400 
2,840 
2,840 
3,320 
6,900 
500 
13,260 
5,267 
9,258 

Rapid 
Liquefying 
Bacteria 
ae 
Me) 
Cw 
110 
O> 1 CO ie 
(an). Len es) (ap lan a amyl 
185 
140 

48 
30 

Slow 
Liquefying 
Bacteria 

540 
13,960 
O15 
940 
3,775 
325 
400 
530 
215 
180 
2,600 
650 
525 
1,300 
860 
730 
790 
730 
1,860 
250 
9,830 
1,631 
1,683 


Hours to 
Curdling 


509 
64 

jected to live steam without pressure for one hour. After this 
sterilizing in a steam chest, the parts were hung up in the 
*Curdled during the night. 
