i ee ee ee eer ee tee ee ; et SE Oe 
<a, 
VOLATILE ANTISEPTICS AND SOIL ORGANISMS. 151 
TABLE I. 
SHOWING THE NUMBER OF SAMPLES TESTED WITH VARYING 
STRENGTHS OF TOLUOL, CS2, AND CHLOROFORM AND 
THE NUMBERS GIVING INCREASE, DECREASE, 
AND NO CHANGE IN BACTERIAL 
CONTENT. 
Toluol CS, CHCl, 
oS). |S4- | 5-0 bg 8.1. |;S8D.} ? | S&S |S.1./S.D | ? 
-O1 5 | 4 i 0 5 | 2 0 3 4 1 0 3 
| @ |i 0 2 ‘yp 1 0 4 2 0 2 
2 9; 8 0 1 cf Veer 498 Vin #00 ce Send (ARS Graig (ore 
3 1 1 0 0 1 1 0 Os Bs cecil bad ol be tie 
4 1/0 1 0 ag Ma Jah | ea ta | Bal ate ee brace 
5 1 1 0 0 dt 0 1 Or | Ree ret ees 
1. 13 | 5 8 0 |}13] 5 | 7 yk oad 1 | 61] 0 
4, 6 | 2 4 0 6 | 3 3 ORM erie ce te | tears 
5. 5 | 0 5 0 3 PO 3 0 3 1 2 0 
10. 4 | 0 7 0 fio es 7 0 ii 0 6 1 
20. 40 2 0 Sao 2 0 2 0 2 0 
S.= samples tested. S. I. samples showing an increase. 
§. D. = samples showing decrease. ? = samples showing no change. 
TABLE II. 
SHOWING THE EFFECT OF TOLUOL, CS2, AND CHLOROFORM 
UPON THE NUMBER OF BACTERIA IN A SOIL 
WHEN EVAPORATION WAS PREVENTED. 
Toluol CS, CHCl, 
m |1d.|3d.| 7d. | 42d. | 1d. | 3d. | 7d. |42d.| 1d. | 3d. | 7d. [42d. 
Chk. | 3.8 | 4.7] 8.8 | 3.4 | 3.8] 4.7] 8.8 | 3.4] 3.8] 4.7 | 8.8] 3.4 
.O1| 5.5 | 8.1 | 14.3 6.6 | 7.5 | 8.5 | 7.3) 4.7] 3.8 | 6.2 | 5.8 | 2.9 
1 | 3.7| 4.5 | 28.0 | 14.4 | 4.3 | 6.4] 4.7] 1.5] 3.5 | 5.5] 4.9] 4.4 
aE 2.4)1.8} 3.0 2.4/1.9] 3.6] 5.6] 5.5] 2.4) 2.7 | 3.3 | 2.0 
10. 2:21)02:6 21 PSB O el Oc 2 alos 2:42. Oe colek S 
20. 1.6/1.4] 2.9 Lele OF ezrauleeec |) 2-onleleos| <2c0n) (cea bo 
Figures=million bacteria per gram soil. 
ld., 3d., ete.—days after treatment. 
