80 REPorRT OF DEPARTMENT OF BACTERIOLOGY OF THE 
TABLE V.— GERM CONTENT oF MILK FRomM B-L—-K MACHINE WHEN THE 
RUBBER PARTS WERE KEPT IN BRINE. 
RESULTS WITH SMALL COTTON FILTERS. VACUUM BROKEN AT STANCHION COCK. 








Suction filter side. Other side. 
1907 1st 3d 5th 2d 4th 6th 
: cow. cow. cow. cow. cow. cow. 
Germs per cc. of milk. | Germs per cc. of milk. 
Mare 23inren. wie Cail 2 21, bo0) leo GO ele, 000 15,330 | 14,000 14,060 
eee oS Reis Non an ik ees 18,200 | 44,600 | 10,000 5,700 7,400 2,900 
OVO Sey ey Wien. Rey ate 7,200 | 14,700 5,700 6,000 5, 900 9,400 
SAO ge a ute ERIE as bo 4,000 5,200 2,700 2,700 4,900 1,800 
ADUIOD ME. Sis bly. Ae 23,400 | 17,700 | 87,000 17,900 | 14,100 1,400 
ES MEPS PATE are te Soe 9,100 | 20,200 | 21,500 9,300 | 10,700 4,000 
tC PAGO we, ere Eat eh boii: 12,000 5,600 | 19,400 5,600 | 14,000 2,200 
BAR SRL bs, ERS Snoop sla tie ata 64,400 | 22,200 | 29,700 8,900 | 10,700 9,600 
AVeTAagOr eel ee be 20,730 | 14,840 | 24,000 8,930 | 10,210 5,730 
Gen saVeTAge wee eis ie heed 19,856 8,290 


RESULTS WITHOUT COTTON FILTERS. VACUUM BROKEN AT STANCHION COCK. 




Suction filter side. Other side. 
ity ly ist | 3d | bth 2d | 4th | 6th 
; cow. cow. cow. cow. cow. cow. 
Germs per cc. of milk. Germs per cc. of milk. 
Mat. guc ae nS oi ch a ee eden 2285000 | 72.000) | 5275200 vitiasm cece: | eee. eee 
ONEIZD Se teh lokes hind here hes 7,600 | 29,300 3,400 5,200 4,800 7,700 
agg 0588 6 aa BORE air Bie 27,200 | 18,400 | 28,700 18,400. | 19,100 29,000 
OPT BONGO. Pine chee eis 87,300 | 23,700 | 17,900 5,200 8,900 1,800 
ADV ee, eit ese ie tae 18,300 | 38,000 | 22,900 1,300 8,300 17,400 
= SMR she bea ee ee ew te be 33,950 | 75,000 -| 88,750 11,150 | 12,650 8,250 
a OT ey Wiad Woes Seer! 26,500 | 29,200 | 33,800 9, 850 6,730 14,600 
Svea] Osos oe eee Cees i ee eae 126,500 | 29,000 |156,000 16,800 | 28,150 30,300 
AverageisudA seine ane 69,420 | 38,700 | 46,700 9,700 | 12,660 15,590 
Gen. averazeru ne. ee oe 51,600 127650 



Several interesting things are brought out by the results in 
this table. In the first place there is no evidence of the pro- 
gressive reduction in the germ content which was observed on 
successive cows in the study of the Globe machine. Accord- 
ingly later observations were confined to the first, pair of cows 
milked by a machine thus reducing the danger of accidental 
contamination to a minimum, 
