17 
‘ 7 
Fresh moist cultures ou slips of filter paper placed between layers of 
dry blankets. Twenty- four hours’ exi^osure. 
[.ayers of blankets. 
Typhoid. 
Anthrax 
spores. 
Diph- 
theria. 

+ 

•> 
— 
+ 
— 
3 
— 
+ 
-U 
4 
— 
-h 
— 
5 
— 
+ 
{«) 
Controls 
+ 
+ 
a Lost. 
^o. 21 . 
Five- tenths cubic centimeter per square foot, sprinkled, blankets. 
Three cubic centimeters formalin diluted with 15 c. c. of distilled 
water sprinkled on a blanket at bottom of a box 3 feet 4 inches by 1 foot 
9 inches by 1 foot 9 inches. Cultures on slips of filter paper, freshly 
prepared and moist, laid between layers of dry sterilized blankets. 
Layers of blankets. 
Typhoid. 
Anthrax 
spores. 
Diph- 
theria. 
1 
- 
+ 
1 
0 
— 
-r 
+ 
3 
— 
+ 
— 
4 
— 
_L 
— 
5 
— 
+ 
— 
Controls 
+ 
+ 
- 
Being satisfied that small amounts of formalin used by this method 
are ineffectual, larger amounts were next tried. 
SPRINKLING LARGER AMOUNTS OF FORMALIN ON BLANKETS AND 
SHEETS. — TIME OF EXPOSURE, TWENTY-FOUR HOURS. 
17o. 22. 
One and three-tenths per square foot, sprinkled, blankets, twenty- 
four hours. 
Two cubic centimeters formalin sprinkled on a blanket at bottom of 
box 15 by 15 by 15 inches. Cultures on slips of filter paper, freshly 
prepared, placed between layers of blankets. Tweutj^-four hours’ 
exposure. 
Layers of blankets. 
Typhoid. 
Anthrax Diph- 
spores theria. 
1 

- 
\{n) + 
3 
— 
-f 
— 
.*> 
+ 
-1- 
(a) -1- 
i 
+ 
-1- 
■b 
<) 
-f 
-f- 
T 
Controls 
-f- 
-f 
i + 
2 
(a) Retarded. 
