60 REPORT OF THE Winer ASSISTANT OF THE 
For the first period of two months (during only the latter oe 
of which the fowls were laying), the weight of water-free food 
required for one ounce gain in weight was, for Pen 6, 9.5 ounces, 
and for Pen 7, 9.2 ounces. During the three last months, when 
very few eggs were obtained, there was also a gain in weight, 
although the fowls were molting. For this period there were 
consumed an average of 23.9 ounces of water-free food for a gain 
of one ounce in Pen 6, and in Pen 7, an average of 11.2 ounces. 
There was a continued loss of weight in both pens during the. 
laying season. Pen 6, with the more nitrogenous ration, gained 
less, and more slowly in weight, and also lost less, and more 
slowly than No. 7. The total average loss of weight in’No. 6 was 
sixty-six per cent of the total average gain; and in No. 7 the total 
average loss was sixty-four per cent of the.total gain. The fowls 
in No. 6 averaged at the end of the ten months about eleven 
ounces heavier than at the beginning of the experiment, and those 
in No. 7 about sixteen ounces. 
The average weight of eggs laid, per fowl, in No. 6, was 120.7 
ounces, and 125.1 ounces in No. 7; a very slight balance in favor 
of the less nitrogenous ration. There was a much greater differ-_ 
ence in the yield of eggs from the different classes of fowls as indi- 
cated by the color of the shell. There was an average product of 
137.6 ounces of brown-shell eggs per fowl from No. 6, and 120 
ounces from No. 7. Of the white-shell eggs, however, there were 
94.4 ounces from No. 6, to 134.1 ounces from No. 7%. The larger — 
“breeds did somewhat better with the more nitrogenous ration, and 
the smaller breeds considerably better with the less nitrogenous. 
The average weight per egg was the same for each pen, 2.03 
ounces. The brown-shell eggs averaged 2.12 ounces in each pen, 
and the white-shell eggs 1.85 ounces in Pen 6, and 1.93 ounces — 
for Pen 7. 
In June, when the composition of the rations had been tie 
nearest alike, analyses were made of ten white-shell and ten 
brown-shell from each pen. The analyses (representing the com- 
position of the entire edible portion of the egg) showed very little — 
practical difference. The average results were as follows: 
