1929] 
SERVICE AND REGULATORY ANNOUNCEMENTS 
Table 2. — Capacity of rectangular tanks 
69 
Capacity in gallons if— 
Capacity in gallons if— 
Length 
Width 
Length 
Width 
(feet) 
(feet) 
lfoot 
2 feet 
3 feet 
(feet) 
(feet) 
lfoot 
2 feet 
3 feet 
deep 
deep 
deep 
deep 
deep 
deep 
2 
2 
30 
60 
90 
>M 
7V 2 
421 
842 
1, 263 
2H 
2M 
47 
94 
141 
8 
8 
479 
958 
1,437 
3 
3 
67 
134 
201 
W% 
m 
540 
1, 080 1, 6-.0 
3M 
3H 
92 
184 
276 
9 
9 
606 
1,212 1,818 
4 
4 
120 
240 
360 
9M 
m 
675 
1,350 2,025 
m 
4H 
151 
302 
453 
10 
10 
748 
1,4% 2,244 
5 
5 
187 
374 
561 
10^ 
ioh 
825 
1.650 2,475 
5H 
5K 
226 
452 
678 
11 
11 
905 
1,810 2,715 
6 
6 
269 
538 
807 
ny 2 
HH 
989 
1, G7S 2, 967 
6H 
6K 
316 
632 
948 
12 
12 
1,077 
2,154 3,231 
7 
7 
367 
734 
1, 101 
Table 3. — Capacity of cylindrical tanks 
Capacity in gallons if— 
Capacity in gallons if — 
Diameter 
Diameter 
(feet) 
1 foot 2 feet 
3 feet 
(feet) 
1 foot 
2 feet 3 feet 
deep deep 
deep 
deep 
deep deep 
2 
24 48 
72 
7* 
330 
660 990 
2H 
37 74 1 111 
8 
376 
752 1, 128 
3 
53 106 159 
sh 
424 
848 1,272 
3^ 
72 144 
216 
9 
476 
952 1, 428 
4 
94 188 
282 
m 
530 
1, 060 1, 590 
4H 
119 238 
357 
10 
588 
1,176 1,764 
5 
147 294 
441 
10K 
648 
1,296 1,944 
5H 
178 356 
534 
11 
711 
1,422 ; 2,133 
6 
211 422 
633 
11H 
777 
1,554 2,331 
6H 
248 496 j 744 
12 
846 
1,692 2,538 
7 
288 ; 576 | 864 
Preparation of plants. — This treatment is not effective when the soil about 
the roots is too wet or compact, or when the diameter of the ball is more than 
6 inches. The temperature of the plants should be at least 60° F. at the 
beginning of the treatment. Shake off the loose soil, and prune the roots as 
much as possible without injuring the plants. 
Application. — The roots must be immersed completely. 
Care of plants after treatment. — The insecticidal action is complete when 
the plants are removed from the solution. The suggestions made on pa 
for handling plants after the hot-water treatment should be followed. 
D. Carbon-di8ulphi4e-emul8ion fit id treatment 
Material. — Use ?>~> per cent iniseible carbon disulphide. Si e page 66. Ca 
Iflsclble carbon disulphide and carbon disulphide emulsion are 'inflammable, 
and the same care should be exercised in handling them as in handling carbon 
disulphide. 
Equipment.- strips of 24-gage galvanized-iron 10 inches wide and of the 
proper length are required. (See Table 4.) 
Tabi b 4. — Size of oollar 
Diameter of ball to be dug 
12 inches or less 
14 inches 
18 inches.. 
20 Inohc 
22 inches. 
Leu 
Feet 
ol oollar 
is 
21 
27 
30 
o 
88 
Diameter of ball U be dug 
24 in. I 
aches 
inches 
33 in. I 
80 in. 
Diametei 
ol ooUai 
of oollar 
Feet 
