New YoRK AGRICULTURAL EXPERIMENT STATION. 41 
In earlier experiments it was always found difficult, except 
-by feeding unusua] materials, to compound a ration solely of 
vegetabie origin that would be as palatable and efficient as one 
containing ‘animal foods. In this case the less costly ration for 
Lot VI containing no animal food, and also supposedly lacking in 
mineral matter, gave much the poorer results. Growth was 
exceedingly slow and more food was required for the little made. 
Owing to excessive mortality among the chicks the net cost of 
production was high and unprofitable. 
With small lots of chicks inferiority in average rate of growth, 
as age increases, under one ration as compared with another may 
sometimes be due to a much smaller proportion of males. No 
disadvantage to Lot VI came from this factor, for 56 per ct. of 
the chicks proved to be males in Lot VI, while in the other three 
lots the percentage ran from 41 to 42. 
Lot VII having the same foods as Lot VI with addition of 
some bone meal made a better showing, but one in general 
inferior to that for either Lot 1V or V. While somewhat less 
food, on the average, was required per pound gain and at a lower 
cost than for any other lot, growth was very slow. About 28 
per ct. faster growth was made by Lot V and 43 per ct. faster 
by Lot IV. The unpalatability of the ration for Lot VII seemed 
chiefiy responsible for its inferiority to the two others, for the 
relation of product to food with the smaller consumption was as 
good on the average as for other lots. The ration tor Lot VI 
suffered on this account though inferior in other ways. Flavor- 
ing the gluten meals with oil of anise and fenugreek did not 
lead to much greater consumption. ‘“ Cream gluten meal” was 
more readily eaten than “Chicago gluten meal” and was fed 
during the Jatter half of the trial. None of the concentrated 
by-products mentioned was fed separately but always mixed with 
some standard food or foods. , 
The by-product called “milk albumen” was palatable and 
somewhat superior in this respect to the animal meal. It also 
seemed the more healthful food; but the chicks that remained in 
health under the animal meal ration made the faster growth. 
The “ milk albumen ” fed at this time was of much higher grade 
than was obtained later for feeding ducklings (see tables I and 
