21 
,, Xo. 30. 
•«Two cubic centimeters diiuted per scpiare foot, sprinkled, blankets. 
( twenty-four hours. 
Three cubic centimeters diluted with 15 c. c. of water ; other condi- 
tions same as Xos. 28 and 29. 
Layers of blankets. 
Anthrax 
spores. 
Diph- 
theria. 
1 
9 
— 
3 

- 
4 
— 
- 
5 
-r 
Controls 
■f 
+ 
I - From Xos. 28, 29, and 30, it appears that 2 c. c. of formalin diluted 
with 5, 10, and 15 c. c. of water will kill nonspore-beariug organisms, 
such as typhoid and diphtheria, through 4 layers of blanket, the same 
as when undiluted. 
STILL LAEGER AMOUNTS OF FOR3IALIX, SPRINKLED. — TIME OF EX- 
* POSURE, TWENTY-FOUR HOURS. 
Xo. 31. 
Two and seven- tenths cubic centimeters per square foot, sj)rinkled, 
blankets, twenty -four hours. 
Four cubic centimeters formalin sprinked on blanket laid in the bot- 
*tom of a box 15 by 15 by 15 inches. Slips of filter paper impregnated 
with the cultures, placed while fresh and moist between the blankets. 
Box opened after twenty-four hours’ exposure. 
1 
Layers of blankets. Typhoid. 
Anthrax 
spores. 
Diph- 
theria. 
j 9 
6. — 
+ 
-f 
8 — 
-f 
10 — 
-r 
-t- 
12 — 
+ 
-f 
Controls 
-f 
-i- I 
Xo. 32. 
Two and seven-tenths cubic centimeters per square foot, sprinkled, 
blankets, twenty-four hours. 
Four cubic centimeters formalin veiy carefully sprinkled upon 
blanket at bottom of a box 15 by 15 by 15 inches. Slips of filter paper 
