15 
MANUFACTURER NO. 6. 
Number of organisms found. 
Dry points. 
Glycerinated virus. 
None examined. 
369 
747 
2, 106 
1,592 
1,912 
2, .578 
3,819 
MANUFACTURER NO. 7. 
Number of organisms found. 
Dry points. 
Glycerinated virus. 
116 
160 
None examined. 
1, 600 • 
2,400 
8,000 
MANUFACTURER NO. 8. 
Number of organisms found. 
Dry points. 
Glycerinated mrus. 
450 
a 2, 100 
476 
a 2, 200 
516 
1 
- b 
1 
3,325 
■i 
1 
3,475 
I 
3, 600 
«The ordinary- pus cocci (white, yellow, and orange) were isolated from this virus, but when inocu- 
lated into animals gave negative result. 
ft This line separates samples bearing a different number as given by the manufacturer. 
Nine weeks later other samples of the glycerinated virus out of the 
same box were counted and gave only 30 bacteria per tube. This 
would seem to indicate that the virus ^as “green” when placed upon 
the market, and that if the manufacturer had kept it a few weeks 
longer it would have been freer from contamination. 
