- 38 - 
in a few hours, and the probabilities of intercrossing a great 
number of these all over the field. Almost before day, bees 
are forcing their way into the expanding buds, and an examina- 
tion of these reveals many whose stigmas have been pollinated 
long before the flowers are fully opened. The writer has 
observed that in the near vicinity of domestic hives in 
northern Georgia the number of honeybee visitors is enormously 
increased. 
p. 261: In cotton fields of northern Georgia the demonstrated 
proportion of crossed blossoms is at least 20 per cent, with strong 
probabilities that approximately 4-0 per cent of the blossoms are 
crossed. Although crossing may be very detrimental in unselected 
cotton, in selected cotton it is probably beneficial. 
Kearney, T. H. 
1923. Self-fertilization and cross-fertilization in Pima cotton. 
U. S. Dept. Agr. Dept. Bui. 1134, 68 pp. 
p. 36: There is little doubt that natural cross-pollination 
in cotton is effected almost solely by the agency of insects. The 
nature of the pollen grains of Gossypium is unfavorable to their 
transportation by currents of air. 
p. 37 j Various Hymenoptera are the most efficient carriers 
of cotton pollen at Sacaton, Ariz,, as is probably the case wherever 
cotton is grown. The honeybee and the wild bees (Melissodes spp.) 
are the most important cotton pollinators in this locality . 
The honeybee ( Apis mellifica L .) is very assiduous in its 
visits to cotton flowers, although sometimes preferring the extra- 
floral nectaries to- those with the flower. Nevertheless, this 
insect probably holds first rank at Sacaton. Ariz., as a conveyor 
of cotton pollen, especially among Pima flowers. As was noted on 
a preceding page, honeybees entering and emerging from the flowers 
when the petals are just beginning to unfold almost invariably come 
in contact with the reproductive organs. 
Meade, R. M. 
1918. Bee keeping may increase the cotton crop. Jour. Hered. 9: 282- 
285. 
p. 285: No effort was made to exclude insects, and the weather- 
conditions during the course of the investigation were not unfavorable 
to their activities. It is evident from the increased yield of bolls 
secured in the long-pistiled Durango vari ety through artificial polli- 
nation that the presence of additional pollinating insects would aid 
in reducing the high percentage of shedding. The value of honey 
