June ii, 1917 
Toxicity of Benzene Derivatives to Insects 
375 
Table; I. —Quantity of a chemical and time required to kill five house flies in a 1-liter 
flask at Jo 6 F . * 
Chemical. 
Quantity 
of 
chemical 
required. 
Time 
required i 
(average 
of five 
tests). 
Gm. 
Minutes . , 
Carbon bisulphid. 
O. 02179 
400 1 
Benzene. 
. 02028 
185 
Do. 
.01521 
349 
Do. 
.01015 
427 
Toluene. 
. 01548 
258 
Do. 
. 01289 
498 
Do. 
. 01032 
600 1 
Chlorbenzene. 
. 01265 
85 
Do.. 
. 00632 
2I 5 
Do. 
• 00413 
566 
Brombenzene. 
• 00475 
i 33 
Do. 
.0038 
160 
Do. 
. 0028 
461 
Do. 
. 0019 
646 
Phenol. 
. 003 
155 
Do. 
. 002 
213 
Do. 
. 001 
411 
Iodobenzene. 
. 00347 
87 
Do. 
. 00231 
123 
Do. 
.00115 
576 
Benzonitrile. 
. 00190 
122 
Do. 
. 00137 
166 
Do. 
. 00063 
427 
Anilin. 
. 00128 
137 
Do. 
. 00064 
204 
Do. 
. 00048 
5 *i 
Benzaldehyde. 
• 00134 
178 
Do. 
. 00067 
219 
Do. 
.00033 
595 
Nitrobenzene..;. 
. 00152 
130 
Do. 
. 00076 ■ 
176 
Do. 
. 00038 
254 
Do. 
. 00019 
45 * 
Xylene. 
. 01005 
95 
Do. 
.00754 
305 
Do. 
. 00502 
911 
Para-dichlorbenzene .. 
.003 
200 
Do.. 
. 002 
424 
Do. 
. OOI 
670 
Para-dibrombenzene .. 
. OOI 
37 * 
Do. 
. 0008 
621 
Do. 
. 0006 
759 
Ortho-chlorphenol. 
. OOI 12 
* 3 * 
Do. 
.OOO75 
181 
Do. 
. OOO56 
5 12 
Chemical. 
Quantity 
of 
chemical 
required. 
Time 
required 
(average 
of five 
tests). 
Gm, 
Minutes. 
Salicylic aldehyde.... 
. OOO44 
93 
Do. 
.OOO29 
no 
Do.. 
349 
Do... 
735 
Ortho-nitrophenol. 
. OOI 
241 
Do. 
. 0007 
409 
Do. 
.0005 
5 12 
Ortho-bromtoluene.... 
. 00265 
*59 
Do. 
. 00177 
34 i 
Do. 
. 00132 
610 
Para-bromtoluene. 
. OOI 
3*8 
Do. 
.0005 
350 
Do. 
. 00025 
35 * 
Do. 
. 0001 
544 
Ortho-cresol. 
. 00064 
182 
Do. 
. 00048 
333 
Do. 
. 00042 
661 
Meta-cresol. 
. 00196 
223 
Do.. 
. 00130 
304 
Do. 
. 00065 
479 
Para-cresol.. 
.00193 
249 
Do. 
. 00129 
3*9 
Do.. 
. 00064 
360 
Do... 
. 00032 
435 
Benzoyl chlorid. 
.00257 
* 3 ° 
Do. 
. 00164 
273 
Do. 
. 00082 
486 
Ortho-nitrotoluene.... 
. 00058 
281 
Do..... 
. 00036 
2 93 
Do. 
. 00029 
450 
Bromxylene (B. P. 
i90°-25o° C.). 
. 002 
201 
Do . 
. OOI 
292 
Do . 
.0005 
487 
Bromxylene (B. P. 
220°—2 50° C.) . 
. OOO87 
269 
Do . 
. OOO43 
35 <* 
Do . 
. 00022 
53 2 
Nitroxylene ... 
. 00028 
368 
Do . 
. 00014 
58 i 
Furfural . 
. OO297 
*55 
Do . 
. OO223 
2 73 
Do .. 
. OOI98 
437 
