- 34 - 
United States Department of Agriculture. 
1942. A much larger harvest of hay crop seeds needed in 1942. U. S. 
Dept. Agr. , Food for Freedom Program, Background Information 
Series, No. 7, 5 pp. 
p. 3: A lack of sufficient pollination insects when red clover 
is blooming is one reason for low seed yields, Honeyb ee s , ._ one of th e 
prin cip al pollinators of redc lov e r, are, the onty__kincl_ that ca n be 
reicUly increased_a nd moved . The placement of one .hive of honeybee 
per acre adjacent to or in a red clover field when blooming will in - 
crease seed production . 
Clover, Strawberry 
Hollowell, E. A. 
1939. Strawberry clover. U. S. Dept. Agr. Leaflet 176, 8 pp. 
p. 6: The blossoms of strawberry clover are visited by honey- 
bees. Apparently they obtain considerable nectar, which indicate'; 
that this is a good honey plant. 
Clover, White 
Hollowell, E. A. 
1936. White clover. U, S. Dept. Agr. Leaflet 119, 8 pp. 
p. 7: White clover is naturally a free-blossoming plant in 
all parts of the United States, but only in a few sections has seed 
production developed as a farm enterprise. ... Even when blossoms are 
abundant, moist, cloudy weather is unfavorable to bee activity, 
necessary cross-pollination is, therefore, restricted and seed produc- 
tion reduced. Th e presence of coloni es cf honeybees...!?:, .the immediate 
vicinity of clover-se ed produaing fi elds usually, insu res a _max L imum of 
cress-pollination . 
Cotton 
Allard, H. A. 
1910. Preliminary observations concerning natural crossing in cotton. 
Amer. Breeders' Mag. 1: 247-261. 
pp. 256-257: Honeybees are among the most frequent visitors of 
cotton blossoms, but, at the same time, they are very generally visitors 
of the outer involucral nectaries alone. ... Nearly all bee visitors 
show a marked tendency to pass from plant to plant up and down the rows 
rather than across. 
p. 258: These casual records are sufficient to show the enormous 
number of blossoms a single bee is capable of visiting in a few hours, 
and the probabilities of intercrossing a great number of these all over 
