24 
poe:malix speixkled foe doii^xt^aed effect. — miE of exposeee, 
TWENTY- FOUE HOUES. 
Xo. 36. 
Two and seven- tenths cubic centimeters per square foot, blankets, 
downward effect, twenty-four hours. 
All the foregoing observations having been made by sprinkling the 
formalin on blankets or sheets at the bottom of the box, and the cultures 
placed between other blankets or sheets laid over this, this observation 
was made with these conditions reversed — that is, the cultures were 
placed between the layers of blanket at the bottom of the box and 
4 c. c. formalin sprinkled above. About the same effect was obtained. 
Layers of blankets. 
Typhoid. 
Anthrax 
spores. 
Diph- 
theria. 
O 



4 
— 
— 
6 
— 
— 
— 
S 
— 
10 
— 
-r 
— 
Controls 
- 
— 
SPEINKLEVG LAEE AWOFNTS. — TWENTY-FOFE HOUES' EXPOSURE. 
Xo. 37. 
Four cubic centimeters per square foot, sprinkled, blankets, twenty- 
four hours. 
Six cubic centimeters formalin sprinkled on blariket at bottom of box 
15 bv 15 bv 15 inches. Cultures fresh and moist placed between lavers 
of blankets as in the other tests. 
Layers of blankets. 
Typhoid. 
Diph- ' 
theria. 
O 
4 
6 
8 
— 
— 
10 
-r 
— 
Controls 
- 
Xo. 38. 
Four and two- tenths cubic centimeters per square foot, sprinkled on 
blankets, twentv-four hours. 
c 
Twenty-five cubic centimeters formalin sprinkled on a blanket in bot- 
tom of a box 3 feet 4 inches by 1 foot 9 inches by 1 foot 9 inches. Cul- 
