REACTIONS TO LIGHT AND GRAVITY IN DROSOPHILA 
95 
TABLE 23 
White eyed flies 
Group A 
AVERAGE 
Sex Violet Green Red 
Malev. 72.9 49.9 QED 
Female... 48.7 38.7 29.1 
meals a. Tied once 
b. Tied once 
Group B 
Male... 61.3 Preven ils), 11 
Female... 64.7 47.1 43.2 
a. Tied twice. a. Tied once 
Male i Tied twice emols te Tied once 
Groups A and B combined 
SEX Vv G R 
Ist | 3 1 2 
Male..... Yel || a3 Dy 1 
S¥ol || Os eas. 83 
Stale 1 1 
Female. . 2d | 3a | 4b] 0 
3d | 0 1 5 
Ist | 6 0 0 
Male..... 2d | 0 4 0 
3d | 0 | 2a} 6b 
| ston On el 
Female. . 2d | 0 4 1 
3d | 1 2a | 4b 
Ist | 9 1 2 
Male..... Zanes 6 1 
3d | 0 5a | 9b 
Ist | 8 1 72 
Female. . Dae) 3a, sip) |i 
Cel 3e | 9d 
Mallen. 5: 67.1 39.0 33.8 
Female... 56.7 42.9 36.1 
Ie Tied once 
, a. Tied twice b. Tied once 
Male a Tied twice Hemel ec. Tied once 
d. Tied once 
of group A tinged females. 
slightly exceeds the violet. 
Here the average green index very 
The table indicating the number of 
times each color won, however, shows that from this standpoint 
violet is still well in the lead. The third exception is found 
in group B vermilion females where red very slightly exceeds 
green both in the average index and in the number of times 
which it was ahead. ‘There is no special explanation for this ex- 
cept the fact that the eye color is approaching that of normal. 
In any case group A more than overbalances it. 
