May 17,1924 Hydrocyanic-Acid Gas in Protection of Chick-Peas 
657 
Table II .—Data on the penetration of hydrocyanic-acid gas into 240-pound sacks 
of chick-peas infested by Bruchus quadrimuculatus and arranged as shown in 
figure 1 , b. All bruchids reached and killed by the fumigant —Continued 
Sack No. 
' 
Sample No. 
Number of seeds examined 
Number of seeds infested 
Number of— 
Total larvae, pupae, and 
adults 
Eggs unaccounted for 
to 
% 
W 
I i 
Emergency holes 
- 1 
Larvae 
8 
Pi 
a 
Ah 
Adults 
One-eighth 
One-fourth 
One-half 
Full-grown 
14. 
1 
50 
50 
333 
36 
18 
62 
36 
34 
11 
19 
180 
117 
2 
50 
47 
211 
1 
80 
9 
1 
1 
0 
0 
91 
119 
3 
50 
24 
43 
0 
10 
4 
1 
0 
0 
0 
15 
28 
4 
50 
21 
27 
0 
8 
0 
0 
0 
•0 
0 
8 
19 
5 
50 
5 
6 
0 
0 
0 
0 
0 
0 
0 
0 
6 
6 
50 
3 
7 
1 
0 
0 
2 
0 
0 
2 
4 
2 
300 
150 
627 
38 
116 
75 
40 
35 
11 
21 
298 
291 
15. 
1 
50 
50 
588 
2 
137 
11 
13 
6 
6 
9 
182 
404 
2 
50 
47 
373 
2 
82 
6 
7 
3 
1 
12 
111 
260 
3 
50 
50 
429 
2 
63 
3 
4 
4 
1 
5 
80 
347 
4 
50 
49 
343 
3 
51 
0 
0 
1 
0 
3 
55 
285 
5 
50 
48 
399 
1 
88 
10 
5 
0 
2 
5 
110 
288 
6 
50 
49 
639 
12 
15 
32 
29 
40 
148 
276 
363 
300 
293 
2, 771 
10 
433 
45 
61 
43 
50 
182 
814 
1.947 
16. 
1 
50 
49 
311 
10 
36 
28 
23 
10 
25 
9 
131 
170 
. 2 
50 
40 
90 
0 
2 
0 
0 
2 
0 
0 
4 
86 
3 
50 
10 
16 
0 
0 
0 
0 
0 
0 
0 
0 
16 
4 
50 
9 
14 
0 
3 
1 
0 
0 
0 
0 
4 
10 
5 
50 
14 
26 
0 
1 
2 
2 
1 
1 
1 
8 
18 
6 
50 
46 
171 
1 
21 
11 
1 
7 
2 
3 
45 
125 
300 
168 
628 
11 
63 
42 
26 
20 
28 
13 
192 
425 
17. 
1 
50 
46 
136 
21 
1 
4 
22 
58 
50 
32 
167 
2 
50 
20 
54 
1 
54 
3 
50 
18 
24 
2 
2 
0 
1 
4 
4 
3 
15 
7 
4 
50 
16 
25 
0 
4 
3 
0 
2 
2 
1 
11 
14 
5 
50 
14 
16 
0 
16 
6 
50 
25 
42 
3 
11 
5 
0 
1 
1 
0 
18 
21 
300 
139 
297 
27 
18 
12 
23 
65 
57 
36 
211 
112 
18. 
1 
50 
46 
156 
16 
3 
3 
8 
42 
33 
22 
111 
29 
2 
50 
30 
55 
0 
14 
4 
1 
7 
5 
2 
33 
22 
3 
50 
12 
16 
0 
0 
0 
1 
3 
0 
0 
4 
12 
4 
50 
8 
10 
0 
4 
0 
0 
0 
0 
0 
4 
6 
5 
50 
14 
18 
0 
3 
0 
0 
0 
0 
0 
3 
15 
6 
50 
17 
25 
0 
4 
0 
0 
0 
0 
0 
4 
21 
300 
127 
280 
16 
28 
7 
10 
52 
38 
24 
159 
105 
WAREHOUSE No. 3 
The 30,000 sacks of chick peas stored in this warehouse were stacked as indi¬ 
cated in Plate 1, B. The warehouse had a wooden frame covered with sheets 
of galvanized iron. The cracks of the building were papered over by professional 
paper hangers with bill posters. This warehouse was extremely loose in con¬ 
struction, with so many openings that the writers would not have believed that 
it could be made sufficiently tight even with the aid of professional paperers. 
Badly infested sacks were found heating on both floors of this warehouse. 
While the samples recorded were taken from the second floor, infestations at 
a of Plate 1, B, were found equally well killed by the fumigation. The sacks 
shown in figure 1, c, represent one carload of chick-peas. Sacks No. 12 to 35 
were exposed at the ends and numbered, on a 13-inch side aisle, between stacks 
of carload lots, leading from the main 8-foot aisle to the rear wall. 
The data of Table III record the number of bruchid eggs and emergence holes 
found in the samples taken from sacks 12 to 35, and thus, by comparison with 
