ARSENICALS. 
45 
Table 21. — Relation of arsenic rendered soluble by insects to toxicity of arsenicals, 1919 
and 1920. 
Axsenicals. 
Total 
number 
Percentage of arsenic. 
of 
insects 
ana- 
lyzed. 
.s§ 
CO CO 
m 
ill 
• rt ® 8 
3 Z3 o3 
III 
Soluble in bodies of— 
Made soluble by juices 
of— 
6 
ft 
1 
"© 
CO 
1 
•1 
d 
CO 
© 
© 
© 
8 
H 
1 
o 
i 
© 
6 
i 
> 
< 
i 
© 
8 
w 
CO 
a 
I 
I 
© 
1 
© 
60 
2 
© 
> 
< 
39 
Commercial acid lead arse- 
8 
8 
8 
7 
8 
6 
9 
7 
9 
6 
6 
10 
7 
9 
310 
353 
405 
320 
360 
336 
423 
321 
546 
293 
292 
570 
331 
515 
17.3 
7.2 
35.7 
5.2 
30.5 
2.4 
15.9 
11.0 
37.9 
33.2 
6.0 
6.2 
100.0 
100.0 
44.5 
28.8 
78.6 
64.8 
41.8 
98.3 
91.8 
80.3 
84.3 
58.4 
74.6 
88.4 
73.4 
46.0 
37.7 
60.6 
33.9 
30.3 
39.1 
44.3 
37.4 
59.9 
48.4 
63.8 
59.2 
70.9 
54.4 
83.5 
63.5 
84.7 
20.0 
64.0 
22.6 
71.0 
61.2 
98.7 
95.1 
73.9 
58.8 
89.6 
89.7 
58.0 
43.3 
74.6 
39.6 
54.6 
34.5 
71.2 
63.5 
79.6 
75.9 
65.4 
64.2 
83.0 
72.5 
27.2 
21.6 
42.9 
59.6 
38.9 
39.4 
82.4 
80.8 
42.4 
51.1 
52.4 
68.4 
28.7 
30.5 
24.9 
28.7 
.0 
36.7 
28.4 
26.4 
22.0 
15.2 
57.8 
53.0 
66.2 
56.3 
49.0 
14.8 
33.5 
20.2 
55.1 
50.2 
60.8 
61.9 
67.9 
52.6 
40.7 
28 
Commercial basic lead arse- 
nate 
36 1 
57 
Commercial calcium arse- 
nate 
38 9 
27 
71 
45 
Commercial white arsenic . . . 
Laboratory barium arsenate. 
Laboratory calcium meta- 
34.4 
24.1 
32.1 
64 
64C 
62 
Commercial Paris green 
Sample 64 plus lime (2 grams) 
Commercial magnesium 
arsenate 
55.3 
52.5 
41.7 
90 
23 
74 
Commercial London purple. 
Commercial zinc arsenite . . . 
Laboratory copper barium 
42.7 
59.4 
58.0 
10 
?K 
Laboratory sodium arsenate. 
Arsenicals. 
03 
iff 
if 
g« 
-a S 
03 
>>co 
-tJ © 
P 
Eh 
© CD 
"3 "EL 
*§ 
o 03 
a m 
§ a 
CO •*■ * 
si 
,C CO 
co 03 
Average amour 
insect ai 
Lt of arsenic per 
lalyzed. 
5*1 
■^ m 
Q 9 
II 
-W © 
© 03 
tits °3 
< 
6 
© 
I 
CO 
© 
>> 
© 
8 
w 
a 
o 
1 
GO 
I 
© 
8 
© 
to 
2 
© 
> 
39 
Commercial acid lead arsenat 
Commercial basic lead arsena 
Commercial calcium arsenate 
78.5 
61.7 
65.5 
69.5 
51.0 
17.5 
79.5 
66.7 
71.0 
73.7 
77.5 
66.0 
78.5 
82.4 
Per c£. 
2.03 
1.73 
.20 
38.00 
.68 
.04 
3.52 
3.52 
4.64 
5.30 
1.25 
6.27 
100.00 
100.00 
Mg. 
0.0223 
.0142 
.0099 
.0091 
.0105 
.0120 
.0087 
.0075 
.0120 
.0068 
.0132 
.0058 
.0165 
.0180 
Mg. 
0. 1212 
.0803 
.1245 
.0914 
.0694 
.0676 
.1203 
.1157 
.1460 
.1315 
.1430 
.0675 
.1130 
.0968 
Mg. 
0.0126 
.0158 
.0189 
.0285 
.0138 
.0110 
.0143 
.0276 
.0173 
.0305 
.0220 
.0177 
.0600 
.0169 
Mg. 
0. 0520 
.0368 
.0511 
.0430 
.0312 
.0302 
.0478 
.0503 
.0584 
.0563 
.0594 
.0303 
.0632 
.0439 
6.0 
<>8 
6.0 
57 
6.0 
?7 
6.0 
71 
Laboratory barium arsenate. 
Laboratory calcium meta-ars 
5.8 
45 
Rnat 
5.9 
64 
5.9 
64C 
Sample 64 plus lime (2 grams 
Commercial magnesium arsei 
Commercial London purple. 
)... 
5.8 
6? 
late 
6.0 
90 
5.8 
?3 
6.0 
74 
in 
Laboratory copper barium arsenate 
6.0 
5.9 
95 
Laboratory sodium arsenate. 
5.9 
The following dedu 
cti 
ons 
i 
ire m 
.ade 
i 
roi 
11 
tl 
ie r 
esult 
S 
shov 
ra 
in 
Table 21: 
(a) Samples 45, 27, 23, 74, and 28 are very stable in water (slightly 
soluble as compared with control results) ; samples 64C, 64, and 39 
are moderately stable in water; samples 71, 90, 57, and 62 are 
unstable in water; and samples 10 and 25 are totally water soluble. 
