92 Report of the Department of Bacteriology of the 



Table IV. — Bacterial Counts of Milk from Farm B. — continued. 

 Numbers computed for a cubic centimeter. 



Date. 



Agar plate 

 counts. 



1913 



Feb. 



Mar. 



7 



10 



11 



13 



14 



15 



17 



18 



19 



20 



24 



25 



26 



28 



1 



3 



4 



5 



7 



8 



11 



Counts Under Microscope. 



Total 



bacteria. 



Bacteria 



and 

 clumps.* 



Clumps. 



Fields 

 counted 



Ratios Be- 

 tween Counts. 



A. p. T. b. 



B. 



& c. 



Morning Milk. 



12,000 

 6,000 

 9,250 

 4,000 

 2,750 

 4,250 

 6,870 

 3,250 

 2,700 

 3,980 

 2,630 

 5,100 

 750 

 2,400 

 3,210 

 2,350 

 1,560 

 3,300 

 9,050 

 2,500 

 2,560 



92,000 

 180,000 

 192,000 

 472,000 

 104,000 

 108,000 

 260,000 

 168,000 

 364, QPO 

 208,000 

 288,000 

 128,000 

 228,000 

 336,000 

 156,000 



96,000 

 152,000 

 128,000 

 168,000 

 148,000 

 420,000 



48,000 

 100,000 

 96,000 

 108,000 

 56,000 

 60,000 

 84,000 

 68,000 

 96,000 

 92,000 

 108,000 

 32,000 

 56,000 

 64,000 

 68,000 

 50,000 

 52,000 

 44,000 

 72,000 

 32,000 

 80,000 

 Night Milk 



8,000 

 24,000 

 16,000 

 56,000 



8,000 

 12,000 

 40,000 

 24,000 

 44,000 

 12,000 

 32,000 

 16,000 

 32,000 

 24,000 

 20,000 

 12,000 

 12,000 

 16,000 

 24,000 

 12,000 

 44,000 



7.5 

 30.0 

 20.7 



118.0 

 37.8 

 25.4 

 37.8 

 51.7 



135.0 

 52.2 



109.0 

 25.0 



304.0 



140.0 

 48.6 

 40.8 

 97.4 

 38.7 

 18.5 

 59.1 



164.0 



4.0 

 16.6 

 10.3 



27.0 



.3 







20.4 



14.1 



12.2 



20.9 



35.6 



23 



41 



6.2 

 74.6 

 26.6 

 21.1 

 23.8 

 33.3 

 13.3 



7.9 

 12.8 

 31.2 



Note. — • In the sample of night milk taken on Feb. 19th, no bacteria could be 

 found under the microscope. 



* Each clump and each isolated bacterium counted as one; individual bacteria in 

 clumps not counted. 



