TOXICOLOGY 277 
of potash 1-500, and crude catechu 1-500 for periods of 18 to 21 
days. 
It is interesting to note that the crop not only serves as a reservoir 
for food, but that absorption through its wall is very rapid, symptoms 
appearing in from two to five minutes after the administration of 
such substances as ammonium chloride in solution, potassium cy- 
anide and strychnine sulphate. 
AMMONIUM CHLORIDE 
Lethal dose. 60 grains. 
45 grains in solution (15 ¢.c. of 20 per cent so- 
lution). 
Toxic dose. Same as lethal. 
Non-toxic dose. 15 to 45 grains. 
Experiments. (1) July 8, 1918, 2 p.m. Fowl received 60 
grains of ammonium chloride. July 9. Fowl droopy, weak in legs, 
sitting. July 10. Same as July 9. July 11. Fowl died before 
8a.m. Autopsy notes. No lesions were apparent. 
(2) February 20, 1918, 11.05 a.m. Fowl received 45 grains of 
ammonium chloride in 12 ¢.c. of water (15 c.c. of a 20 per cent solu- 
tion). Stimulating effect observed almost immediately. Fowl had 
not been very active previously. After administration of the chlo- 
ride, bird began scratching energetically and singing more than the 
neighboring untreated fowls. Would drop wing on one side in imi- 
tation of a rooster and would crowd up against the side of the cage 
which separated her from another hen. Would peck at her through 
the cage. 11.20 4.m. Same asabove. 11.25 a.m. Drinking con- 
siderable water. 11.80 a.m. Excitement has passed. 1.00 P.M. 
Fowl has a sleepy appearance. Bunches up somewhat when not dis- 
turbed. 4.30P.m. Notactive. Bunched up. February 21, 1918, 
9 a.m. Fowl sleepy and bunched up. Stands erect but wabbles 
when disturbed. 4.30P.m. Fowldroopy. Bunchedup. Feathers 
ruffled. February 22. Above described condition intensified. Feb- 
ruary 23. Fowl died before 8 a.m. Autopsy notes. Crop filled 
with food. Lungs pale. Other organs apparently normal. 
(8) June 25,1918, 10 a.m. Fowl received 45 grains of ammon- 
ium chloride. Result. No effect was apparent. 
(4) February 28, 1918, 10.05 a.m. Fowl received 15 grains of 
ammonium chloride. Result. No effect was apparent. 
