20 
W. L. WILLIAMS. 
nal organs were found healthy so far as could be determined by 
a careful seriatim inspection except the lower portion of the 
bowel, which was inflamed and contained a thin, yellowish, 
flaky fluid. The air sacs and their dependencies were thickly 
infested with cytodites. 
No. 2. A partridge Cochin hen, same age and lot as No. i, 
with identical history as to date and symptoms. Weight at time 
of killing 9 pounds. Killed by bleeding. All internal organs 
found healthy except muco-enteritis of the lower intestine. 
Cytodites were in countless numbers in the various air sacs. 
Ivike No. I, No. 2 was excessively fat when destroyed, but did 
not lay before being killed nor did the condition of the ovary 
indicate early laying. 
Case No. 5. Brown Leghorn cock, aged two years, imported 
from Massachusetts, March, 1894. During the breeding season 
of 1894 he was mated with six hens, during 1895 with ten. He 
was well cared for, had ample food, both in quantity and variety, 
with abundant range, and free access to clean running spring 
water, and had been apparently in perfect health at all times 
until July, 1895, when it was noted that his comb had an ab¬ 
normal hue, being somewhat purplish or bluish, his plumage 
losing at the same time to a degree its usual lustre, yet he ap¬ 
peared lively and associated with the hens as usual. The hens 
were laying well, but the eggs, which showed an average fertil¬ 
ity during the spring, began to decline in fertility and early in 
July became almost sterile, indicating a loss of sexual powers. 
From this time the symptoms of disease increased steadily, the 
comb and wattles gradually becoming a pale blue, then a pale 
bluish white, and gradually decreasing in size to one-tenth 
their normal proportions. The plumage gradually lost its lustre, 
became ragged, dishevelled to an extreme degree. General 
weakness, with emaciation, became apparent and the bird ceased 
to accompany his mates, but remained apart from them, list¬ 
less, inattentive to surroundings. 
During the entire course of the disease there were observed 
lao signs of diarrhoea. On October 8, 1895, the disease had pro- 
