92 Report oF DEPARTMENT OF BACTERIOLOGY OF THB 
the subjects of the use of brine and of air filter there are other 
minor factors which should be considered. Our observation 
on the influence of two of these is here presented. 
Carrying the pail with the top off—aIt was observed that 
there was a marked tendency on the part of the milkers to carry 
the milking pail into the barn with the top off, since in this 
way the weight was more easily distributed although the pail 
was not excessively heavy when the top was on. In our work 
the tops were put on the pails immediately after they had been 
steamed and were kept carefully in place until the time for 
milking. In the present test, in one case the milker carried 
the pail in one hand and the top in.the other from the wash 
room to the stable and in between the two cows which were 
to be milked—a distance of 30 to.50 feet—and in the other 
case the pail was carried with the top on the pail. It was 
intended that the exposure of the pails in this way should be 
approximately equal to that experienced in the regular manipu- 
lation in the barn. The results of 20 counts of milk produced 
under each set of conditions is given in Table XII. 

TABLE XII.— EFFECT ON GERM CONTENT OF CARRYING PAIL WITH THE 





















Top OFF. 
Top on pail Top off pail. 
Machine Machine Machine Machine 
NO: 2437. No. 2716. No. 2437. No. 2716. 
1908. Fal he TGS.) geile 
Sere Ruth. | Nora. | Bess. ae Ruth. | Nora. | Bess. 
Germs per cc. of milk. Germs per cc. of milk. 
Mars ween 940| 1,640] 1,790} 2,410||Mar. 25.....] 4,800 950} 2,460} 1,570 
ZO) 205. nnd a SLO! 26201 3. Sse0lman GOU 4 OT kee 2,490/15,860} 2,320) 5,880 
OULa eee 200!) 92100) 4a 20 eso 0 Cpe oa parte 3,100/19,640} 4,490} 6,590 
PATON el ogee eee 1,460] 5,700) 4,440) 5,040)/April 2...... 15,400} 5,810} 3,870} 4,030 
See aa 3,190) 7,850} 1,220} 4,610 pos A ee 7,540} 4,650] 3,660) 2,050 
Average....| 2,546] 5,382] 4,000!1 4,952 6,646] 9,380] 3,360} 4,020 
Gen. av..... . 4,220 , 5,850 

