18 
llo. 23. 
One and three-tenths cubic centimeters per square foot, sprinkled, 
blankets, twenty-four hours. 
Same conditions as Ho. 24. 
Layers of blankets. 
Typhoid. 
Anthrax 
spores. 
Diph- 
theria. 
1 
2 
— 
+ 
— 
3 
— 
-f- 
T 
4 
— 
+ 
— 
5 
-T 
+ 
+ 
Controls 
1 
T 
+ 
The 2 foregoing tests, Hos. 22 and 23, were made with dry blankets. 
The following one was made with moist blankets ; the other conditions J 
being similar : i 
Ho. 24. I 
One and three tenths cubic centimeters per square foot, sprinkled moist \ 
blankets, twenty- four hours. ! 
Two cubic centimeters formalin sprinkled on a moist blanket at bot- j 
tom of box 15 by 15 by 15 inches. Cultures fresh and moist as above 
and placed between the layers of a moist blanket. Box opened after 
twenty -four hours’ exposure. The blankets are still moist. 
Layers of blankets. 
Typhoid. 
Anthrax 
spores. 
Diph- 
theria. 
1 
o 
(cl-h 
3 
4 

5 

4- 
Controls 
+ 
' 1 
c Contaminated. 
It is again evident that the presence of moisture interferes with the 
penetration of the formaldehyd when used by this method and causes 
an irregular effect. . • 
In the following test layer amounts, 2 c. c. per square foot were used : ' 
Ho. 25. ' 
Two cubic centimeters formalin per square foot, sprinkled, blankets, 
twenty- four hours. 
Three cubic centimeters formalin sprinkled on a blanket at bottom of 
a box 15 by 15 by 15 inches. Cultures fresh and moist on slips of filter 
