760 
Journal of Agricultural Research 
Vol. XXI. No. 10 
Table X .—Fourth dispersion test at Dallas , Tex. Species and sex of marked flies recov¬ 
ered in rings of traps about point of liberation 
Trap No. 
Dis¬ 
tance 
from 
place of 
release. 
Musca 
domesiica. 
Chrysomya 
macellaria. 
Phormia 
regina. 
Ophyra 
leucostoma. 
Total. 
Grand 
total. 
d 
9 
s 
9 
S 
9 
d 
9 
c? 
9 
S. E. 
7.0 
0 
6 
0 
0 
0 
2 
1 
0 
1 
8 
9 
x S. 
8.2 
0 
X 
0 
1 
0 
I 
0 
0 
0 
3 
3 
x W. 
9-5 
0 
0 
0 
2 
0 
2 
0 
0 
0 
4 
4 
x E. 
9-3 
0 
1 
0 
0 
0 
O 
0 
0 
0 
1 
X 
2 S. 
9-7 
0 
3 
0 
X 
X 
3 
0 
0 
1 
7 
8 
S W. 
10.0 
0 
0 
0 
2 
0 
3 
0 
0 
0 
5 
5 
Total. 
0 
4 
0 
5 
X 
8 
0 
0 
X 
17 
18 
2 W. 
10. 9 
0 
1 
0 
2 
0 
3 
0 
0 
0 
6 
6 
2 E... 
10.8 
0 
0 
0 
0 
0 
X 
0 
0 
0 
1 
X 
Total. 
0 
X 
0 
2 
0 
4 
0 
0 
0 
7 
7 
x N.. 
I3-X4 
0 
X 
0 
O 
0 
0 
0 
0 
0 
1 
X 
3 W . 
13-a 
0 
0 
0 
0 
0 
0 
0 
0 
0 
O 
0 
3 E. 
X3-t 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
Total. 
O 
1 
0 
0 
0 
0 
0 
0 
0 
X 
X 
4 W. 
IS-8 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
4 E...... 
IS -1 
0 
0 
0 
X 
0 
0 
0 
0 
0 
X 
X 
Total. 
0 
0 
0 
X 
0 
0 
0 
0 
0 
X 
I 
5 W . 
17.8 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
2 N. 
16.85 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
s E . 
17.0 
0 
0 
0 
0 
0 
O 
0 
0 
0 
0 
0 
Total. 
0 
0 
0 
0 
0 
O 
0 
0 
0 
0 
0 
Grand total. 
0 
13 
0 
9 
X 
IS 
X 
0 
2 
37 
39 
Table XI .—Climatological data relating to fourth dispersion test at Dallas, Tex. 
Date. 
Temperature. 
Wind. 
Max. 
Min. 
Mean. 
Direction during succes¬ 
sive hours from 6 a. m. 
to 8 p. m. 
19x8. 
°F. 
°F. 
°F. 
Oct. xo... 
76 
64 
70.0 
4 SE., 3 S., 7 NE. 
11. .. 
77 
64 
7 o-s 
3SE..5S..3 w., 3 n. 
12... 
84 
62 
73 -o 
6E..2 S..2NE..4 N. 
13... 
83 
64 
73-5 
2 N., 3 NW., s NE., 4 W.. 
14... 
79 
59 
69.0 
3NE..3 E..8NE. 
15... 
76 
49 
62.5 
3 NW., 11 NE. 
x6... 
76 
62 
69. 0 
2 N., S NE., 3 N., 4 NE... 
17... 
72 
63 
67-5 
4 E.,3NEm sN., 2NE... 
18... 
79 
66 
72-5 
S N., 2 NE., 2 W., s NW.. 
19... 
79 
64 
71-5 
2 NW., 7 W., 2 NW., 3 N. 
20. . . 
86 
68 
77.0 
3 NW., 4 N., 2 NW., sN.. 
21. . . 
81 
64 
72-5 
4 E., 4 SE .,3 e., 3 nw... 
22. . . 
69 
63 
66.0 
5 SE., 4 S., 2 SE., 3 E. 
23 ... 
69 
62 
< 55-5 
1 N., 2 NW., 4 N., 7NW.. 
24... 
69 
62 
65-5 
11 NW., 3 W. 
25 ... 
74 
56 
65.0 
2 E., 11 SE., 1 E. 
26. . . 
66 
43 
54-5 
4 SE., 3 N., 7 W. 
27... 
59 
42 
50-5 
12 W..2SW. 
28... 
7 i 
46 
58.5 
1 SE., ix S., 2 SE. 
29 ... 
67 
54 
60. 5 
1 W., 13 NW. 
30... 
68 
47 
57-5 
10 NW., 4 W. 
31 ... 
64 
48 
56. 0 
4 W. , 6 NW., 4 N . 
Nov. 1 ... 
69 
42 
55-5 
10 SE., 1 S., 3 SE . 
2. .. 
73 
48 
60.5 
14 SE . 
3 ... 
75 
52 
63-5 
4 SE.,6S., 4 SE . 
4... 
75 
54 
64-5 
3 SE., 6 S., 5 SE . 
5 -.. 
76 
57 
66. s 
14 SE . 
Humidity. 
Ac¬ 
tual 
sun. 
Velocity 
during 
day. 
Rain. 
Max. 
Min. 
Mean. 
Miles. 
Inch. 
Per 
cent. 
Per 
cent. 
Per 
cent. 
Per 
cent. 
3 to s 
0 
90 
66 
78 
8 
2 to 7 
0.02 
99 
72 
85 
7 
1 to 8 
0 
100 
57 
78 
70 
1 to 10 
Trace. 
87 
60 
73 
67 
5 to 16 
0 
50 
25 
37 
100 
2 to 10 
0 
74 
35 
54 
94 
6 to 10 
0 
66 
50 
58 
35 
3 to 7 
.18 
97 
84 
90 
4 
3 to 7 
Trace. 
94 
66 
80 
45 
2 to 7 
0 
94 
78 
86 
35 
3 to 9 
Trace. 
83 
50 
66 
62 
5 to 10 
0 
87 
64 
75 
45 
2 tO 17 
_ 2.76 
100 
94 
97 
0 
3 tO 12 
Trace. 
97 
80 
88 
18 
3 to II 
0 
87 
66 
76 
14 
2 tO 13 
0 
97 
60 
78 
79 
8 to 20 
2.66 
99 
9 i 
95 
O 
3 to 18 
0 
79 
56 
67 
65 
8 to 32 
0 
59 
28 
43 
100 
7 to 13 
0 
89 
47 
68 
55 
3 to 10 
0 
95 
47 
7 i 
100 
4 to 10 
0 
80 
37 
58 
100 
5 to 13 
0 
76 
29 
52 
100 
7 to 18 
0 
72 
34 
53 
94 
6 to 12 
0 
94 
60 
77 
68 
5 to 12 
0 
99 
60 
79 
62 
7 to 18 
Trace. 
94 
75 
84 
22 
