16 
1 
I 
No. 18. 
Six-tenths cubic centimeter formalin diluted per square foot, sprinkled, 
blankets, twenty-four hours. 
One cubic centimeter formalin and 15 c. c. water ; otherwise the same 
conditions as Xos. 14, 15, and 16. 
Layers of blankets. 
Typhoid. 
Anthrax 
spores. 1 
Diph- 
theria. 
1 
o 
3 
(c)- 
1 M 
— 
4 
— 
"T* 1 
~i” 
5 
id) 1 
i ■“ 
+ . 
Controls 
“T 
”T“ i 
c Contaminated. d Lost. 
Xo. 19. 
» 
Six-tenths cubic centimeter formalin diluted per square foot, sprinkled, 
blankets. 
One cubic centimeter formalin, 25 c. c. water; otherwise the same 
conditions as Xos. 14, 15, 16, and 17. 
Layers of blankets. 
Typhoid. 
Anthrax 
spores. 
Diph- 
theria. 
1 
(c) + 

1 
o 
1 
3 
— 
~r 
+ ' 
4 
— 
-r 
“T 
5 
— 
+ 
— 
Controls 
+ 
+ 
1 
c Contaminated. 
Diluting the formalin, therefore, does not increase its efficiency when j 
used by this method — sprinkling. Dilution appears to have somewhat 
the same influence that moist blankets have, viz, renders its penetration j 
through the blankets very irregular. | 
Small amounts of formalin used by this method gave such unexpected j 
results that a few more tests were made at a later date to confirm these i 
observations and are inserted here. 
Xo. 20. I 
Five-tenths cubic centimeter per square foot diluted, sprinkled, ^ 
blankets. " j 
Two cubic centimeters formalin diluted with 10 c. c. of water sprinkled j 
on a blanket at bottom of a box 2 by 2 by 2 feet. ^ 
I 
