STOKING POLLEN IN THE HIVE. 29 
These analyses show conclusively that a very large amount of 
sugar has been added to the pollen by the time it reaches the cor- 
biculse. Calculated on a dry basis just about twice as much sugar is 
present in the basket pollen as in that from the corn plant. Not only 
is this so, but the additional fact is disclosed that over three times as 
much reducing sugar is present in the corbicular pollen as sucrose. 
This latter result indicates that honey (largely a reducing sugar) 
rather than nectar (containing more sucrose) is the chief sugar in- 
gredient of the corbicular pollen. The additional amount of sugar 
(here again a reducing sugar) in the stored pollen- of the hive is 
what might be expected, since it is supposed that the workers add 
honey and possibly other ingredients to the pollen within the 
storage cells. 
The total solid percentages, corn 53.47, corbicula 66.94, stored 
pollen 79.66, also show that the fluid substance which is added is one 
highly charged with solids, a condition which honey amply fulfills. 
In the descriptions which have been cited of the pollen-gathering 
process in which the mouth is supposed to supply the requisite fluid 
three substances are mentioned: Nectar, honey, and saliva. The 
analyses herein given indicate that reducing sugar is mingled with 
the pollen, and in the case of corn it is indicated that honey is used 
in .greater abundance. Without doubt a certain amount of saliva 
also finds its way to the pollen, but the proportion of this substance 
has not been determined. This salivary fluid may have adhesive 
qualities, but this is scarcely necessary, since honey alone is amply 
sufficient for this purpose. 
It appears probable that the fluid which a bee adds to the pollen 
which it is collecting varies somewhat in amount, since the pollen of 
different plants differs- considerably in moisture content and that of 
the same plant will differ in this respect at different times. Pollen 
collected in the early morning before the dew has left the plant is 
much more moist than that found upon the same plant later in the 
day, and the grains, if taken when moist, have a natural tendency to 
become aggregated and form small masses. Moreover, this may ex- 
plain the fact that bees make their pollen-collecting trips during the 
morning hours, rather than in the afternoon, although some may be 
seen upon the flowers throughout the whole day. 
STORING POLLEN I2T THE HIVE. 
When the bee has fully loaded its baskets and before it returns to 
the hive it often spends a little time upon the plant from which it 
has been collecting, occupied with the task of cleaning scattered 
grains of pollen from its body and of patting down securely the loads 
which it has obtained. Upon its return to the hive it hurries within 
and seeks for a suitable place in which to deposit the pollen. Some 
