PHYSIOLOGICAL ACTION OF NITROBENZENE VAPOR ON ANIMALS 451 
March 31 — The bird showed symptoms very similar to those described 
for Hen VI. 
April 1 — The bird was found dead. 
‘ On March 27 (two days after the fumigation) this hen laid an egg. 
The egg was opened on March 29; a strong odor and a very characteristic 
taste of nitrobenzene were detected in the yolk, but the white did not 
contain more than a trace of the chemical. This phenomenon can easily 
be explained by the fact that nitrobenzene is soluble in fats, but is scarcely 
soluble at all in the white of eggs. 
HEN VIII AND ROOSTER III 
May 10, 1917 — Birds fumigated together, at 23° C., for a period of 
eight hours. 
Time when fumigation was begun, 2 p. m. 
Time when fumigation was finished, 10 p. m. 
Observations: The rooster was found dead at the end of the 
fumigation period. The hen appeared slightly stupid when removed 
from the tank and became easily fatigued, but was otherwise normal. 
No further symptoms developed in the hen until on May 14, when it 
was seen to stagger on attempting to run. During the next few days 
the bird was very stupid. It did not eat much, staggered in attempting 
to walk, and fatigued easily. 
May 25 — The condition of the bird was apparently normal again. No 
further symptoms ever developed in this bird. 
PIGEONS IV AND V 
June 11, 1917 — Birds fumigated at 24° C. for a period of six hours. 
Time when fumigation was begun, 1.10 p.m. ~ 
Time when fumigation was finished, 7.10 p. m. 
Observations: The birds were apparently normal when removed from 
the tank. They could fly and run easily. 
June 12—One of the birds showed the following symptoms: it was 
unable to fly, tho the wing movements were fairly well coordinated; 
in attempting to walk, it lunged forward and tumbled on its head; there 
was rotation of head and neck. 
