APPENDIX F 97 



One small grit was passed. 



Ten small grits were passed. 



Twelve small grits were passed. Gave dari and rice 



again with twenty garnets. 

 No garnets eaten. No grits were passed. 

 One small grit was passed. 

 No grits were passed. Still no garnets eaten. 

 No grits were passed. 

 One grit was passed. 

 Healthy birds were now passing three or four times 



as much of the ceecal droppings as A, suggesting 



that much less than the normal quantity of food 



w^as being eaten by A. 

 Tried A with broken glass, coloured green, and 



simulating quartz. 

 One grit was passed. Gave A yellow glass, took 



away the green, which had not been touched. 

 No grits were passed. 

 Five small grits were passed. 



Removed all the glass. Twelve small grits were passed. 

 No grits were passed. Gave white glass beads. 

 Fifteen grits were passed, all very small. Cleaned 



away all the glass, none had been taken. 

 Fifteen grits were passed, very small, almost like sand. 

 Three grits were passed, very small. 



This experiment then came to an end. No more droppings w^ere 

 collected. The bird had lost something like 3 ounces of weight in forty 

 days of starvation from grits, but with abundance of food. 



More than half of the whole grits passed in those forty days was passed 

 on the first day. 



The total amount of grits passed in the forty days equalled half the 

 amount of grits found normally in a healthy Grouse cock's gizzard. 



VOL. II. G 



