10 
POURING THE FORMALIN ON ONE SPOT — TIME OF EXPOSURE, TWENTY- 
FOUR HOURS. 
The following five observations, Nos. 5, 6, 7, 8, and 9, were designed 
to determine to what distance formalin is efficacious when poured on 
blankets and sheets. The formalin in these five observations was 
poured in a measured amount on one spot or edge of the blanket or 
sheet, and the cultures placed at varying distances and separated by 
varying layers. 
In two instances, ISTos. 7 and 8, the formalin was poured on a strip of 
absorbent cotton, laid along the edge of the blanket, instead of pour- 
ing it directly on the blanket. 
No. 5. 
One cubic centimeter poured on one spot, blanket, twenty-four hours. 
One cubic centimeter formalin poured on one spot on a blanket at 
bottom of box 3 feet 4 inches by 1 foot 9 inches by 1 foot 9 inches. 
Slips of filter paper, moist and freshly prepared from bouillon cultures, 
placed between layers of blankets 2 feet away from the formalin. 
Twenty-four hours’ exposure. 
Layers of blankets. 
Typhoid. 
Anthrax 
spores. 
Diph- 
theria. 
1 
+ 
+ 
-f 
9 
+ 
+ 
+ 
3 
+ 
(a) 
+ 
4 
+ 
+ 
+ 
5 
+ 
+ 
6 
- 1 - 
+ 
+ 
7 
-f 
+ 
+ 
Controls 
+ 
+ 
-f 
a Lost. 
No. 6. 
One cubic centimeter poured along the edge, blanket, twenty-four 
hours. 
One cubic centimeter formalin poured along the edge of a blanket. 
Moist cultures in filter paper 8 inches from formalin and between the ^ 
layers, as stated in the table. Box opened after twenty-four hours. 
^ 1 ^ 
