282 DISEASES OF DOMESTICATED BIRDS 
CASTOR OIL 
Non-toxic dose. 6% drams + 
Experiment. (1) February 7, 1918, 10.30 a.m. Fowl received 
6% drams of castor oil. February 8, 1918. 9 a.m. Evidence of 
moderate purging. Droppings greenish. Fowl was not visibly af- 
fected otherwise. 
CATECHU (CRUDE) 
Non-toxic dose. 1-500 solution + 
Experiment. (1) June 10, 1918. Gave fowl a 1-500 solution 
of crude catechu as drinking water. Fowl drank solution freely. 
July 1, 1918. Fowl drank 3000 cc. of above solution in 21 days. 
No other water was given. No constipation was observed. No 
change in fowl was apparent. 
CHLORIDE OF LIME 
Non-toxic dose. %4 to 1% drams. 
Experiments. (1) August 15, 1918, 10.30 a.m. Five pound 
fowl received 114 drams of chloride of lime. Result. No effect 
was apparent. 
(2) August 18, 1918, 2.30 p.m. Five pound fowl received %4 
dram of chloride of lime. Result. No effect was apparent. 
COPPER SULPHATE (BLUE STONE) 
Lethal dose. 20 grains. 
15 grains in solution. 
Toxic dose. Same as lethal. 
Non-toxic dose. 5 to 15 grains. 
Experiments. (1) July 8,1918,22.m. Fowl received 20 grains 
of copper sulphate. 4 .m. No change apparent. July 9. Fowl 
droopy. Sitting. July 10. Same as July 9. July 11, 9a.™. 
Fowl dead. Autopsy notes. Pharynx and esophagus show coagula- 
tion of the mucosa. Mucosa of crop exfoliated. Crop filled with 
water and greenish catarrhal exudate. Lower esophagus shows co- 
agulation necrosis of mucosa. Proventriculus shows severe catarrhal 
gastritis. Catarrhal enteritis. Entire intestine is filled with green- 
ish catarrhal exudate. 
