Digestive Coefficients of Poultry Feeds, etc. 
33 
Fig. 13. Amount of Grit Remaining in the Gizzards of Hens at the End of 
Hen No. 23, killed 300th 
Hen No. 24, killed 330th 
Hen No. 25, killed 365th 
Hen No. 26, killed 365th 
day. 
Each Period 
Wt. gizzard, 
10.00 
gins. 
Wt. 
grit, 3.95 
gms. 
day. 
Wt. 
gizzard, 
6.53 
gms. 
Wt. 
grit, 1.93 
gms. 
day. 
Wt. 
gizzard, 
7.10 
gms. 
Wt. 
grit, 2.56 
gms. 
day. 
Wt. 
gizzard, 
9.97 
gms. 
wt. 
grit, 5.89 
gms. 
Poul.—3 
