32 
Table Xo. 20. — Bouillon containing various percentages of formalin uas distributed in 
test tubes, and each tube u-as inocidated with a small loop ful of a jorty-eight-hour agar cul- 
ture of B. coli communis kept under observation in the incubator at 37° C. for jifteen days. 
[-r means growrli; — no growth.] 
Dilution. 3 
7k 
•— X 
— , X 
X 
rf .r 
"5 
:k 
1 to 7.000... - 
! 
1 to 6.000... — 
- 
{ scant. 
K 
- 
-f- 
f 
- 
- 
- 
1 to -5.000... — 
- 
{scant. 
}- 
' - 
- 
^ -r 
- 
- 
- 
- 
1 to 4.000... - 
- 
- 
- 
- ' - 
- 
- 
/ - 
\ scant. 
- 
- 
- 
1 to 3.000... - 
1 to 2.000... - 
1 to 1.000... - 
1 to -500 — 
Table Xo. 21. — Bouillon containing various percentages of formalin was distributed in 
test tubes and each tube was inoculated with a small loopful of a forty-eight-hour agar 
culture of B. proteus kept under observation in the inculmtor at 37° C. for jifteen days. 
[— means growth; — no growth.] 
Table Xo. 22. — Bouillon containing various percentages of formalin was distributed in 
test tubes and each tube was inondated u'ith a small loopful of a fotiy-eight-hour agar 
culture of B. enteritidis kept under observation in the incubator at 33° C. for fifteen days. 
[— means growth: — no growth.] 
i 
! 
1 . i 
1 
1 
.5 
— 
is* 
1 
>• 
_ 
JZ 
Dilution. , 
1 
■i- 
1 
$• 
1 i 
=■ 
5 
'3 
■2 
- 
— 
I 
3 
JZ 
Z 
3 
3 
z 
1 
I 
= 
-r: 
X 
> 
U 
= 
> 
> 
1 = 
1 
- 
X 
- 
X 
X 
- ' 
Z 1 
■ ^ 
' 
- 
- 
1 to 7.000... 
+ 
X i 
; . j 
1 .. 
+ . : 
; , i 
+ 
1 to 6.000... 
— 
— 
-i- 
-r 
— 
-f 
-b 
4- 
+ ; 
— 1 
1 
-f- 
+ 
1 to -5.000... 
- 
- 
f 
iscant. 
1 
- 
+ 
T 
-f 
+ 
-f 
1 to 4.000. . . 
- 
- 
- 
- 
- 
f ^ 
\scant. 
1 . 
i 
-f- 
[ -f- 
+ 
1 to 3,000... 
— 
— 
— 









— 
— 
1 to 2.000. . . 
— 
— 
_ 


_ 

_ 
_ 
— 

1 to 1,000... 
_ 
_ 

_ 
_ 
_ 
_ 
1 
_ 
_ 
_ 
__ 
- 1 
1 
1 to .500 .... 
— 
— 
- 
— ! 
1 “ 
— 
— 
- 1 
\ 
