Kentuclry Agricullziral Experiment Station 11
only a portion of the burley crop is used for cigarettes, it is
easily seen that a large increase in ciga1·ette consumption can
take place without providing an outlet for any conside1·able
part of the surplus that has resulted from the overexpansion
in production.
Poultry and Egg Marketing. A considerable number of
` produce dealers and country storekeepers have been visited
for the purpose of obtaining information regarding the meth-
ods employed by them in handling and marketing poultry and
eggs. Quality is an important factor in marketing eggs and
unless eggs are purchased from farmers on a grade basis, the
incentive to strive for high quality is lacking to a large extent.
Attention, therefore, has been paid to the possibilities, among
other things, of adopting some plan of grading eggs for this i
purpose. Considerable interest in the development of a plan
of this kind is evident among the larger egg buyers in the
state. The greatest obstacle seems to be the difficulty of ob-
taining the assured cooperation of a sufficient proportion of _,
the buying trade to insure the plan’s success. i
Metabolism of the Chicken and Other Animals. In the ex- l  
perinient on the etl’ei·t of ealeiuin. carbonate in the diet of hens, ,
the hatchability of the eggs from hens confined to the house,
1·eeeiving the customary ration of grain and mash, with grit p
and some green food, but no shell, was reduced to zero by the
middle of April. On May 1, and thereafter, oystershell was
allowed these hens freely, whereupon the hatehability of their
eggs increased to 36 per cent. by the middle of June. On the
other hand, hens treated in the same way, except that they re-
ceived oystershell freely, produced eggs in April, the hatcha-
bility of which was 57 per cent. After shell had been withheld
from these hens, beginning May 1, the hatchability of their
eggs fell to about 5 per cent. Another lot of hens, similarly
housed and fed, but allowed a free range, receiving shell freely
from November 1 to May 1, produced eggs before May 1 hav-
ing a higher hatchability in two settings out of three than those
produced by the hens without range but receiving shell. After
shell had been withheld from the hens on range, the hatehabil-