448 WALLACE LARKIN CHANDLER 
HEN V 
March 21, 1917 — Hen fumigated at 30° C. for a period of six and one- 
half hours. 
Time when fumigation was begun, 1 p. m. 
Time-when fumigation was finished, 7.30 p. m. 
Observations: The bird was removed from the tank apparently normal 
except that it appeared a little stupid. The feces were formed when the 
bird was first placed in the fumigation chamber, but those deposited 
immediately after the bird was removed from the tank were soft, stringy, 
and slightly bloody. 
March 22 — The bird appeared normal except that the neck feathers 
were constantly ruffled —a condition which induced such a belligerent 
attitude on the part of the other birds in the cage that this hen had to 
be placed by itself. No further symptoms developed until March 27, 
on which day the bird was found lying prone on its side and apparently 
unable to stand. When the bird was lifted it exhibited a circular rotation 
of head and neck; and when it was placed on its feet, the legs stiffened, 
throwing the bird backward. 
March 28 — The bird’s general condition was about the same. Nothing 
new was especially noted. 
March 29 — The bird’s condition had grown worse. The skin was cold, 
and the bird was placed in a warm room. There appeared frequent 
periods of excitation, during which the bird thrashed about a good deal. 
March 30 — The bird was found lying on its left side, with its left leg ex- 
tended and rigid and its right leg exhibiting violent tremors. The respiration 
was normal. The head was moving by jerks sidewise. When placed on 
its feet the bird lunged forward instead of backward. At 2 p. m. the 
bird swallowed some water when its head was placed in water and then 
released; it also swallowed a little moistened bread when this was placed 
in its mouth. Each attempt at swallowing was followed by excitation, 
during which the head was drawn back rigidly between the wings or 
revolved slowly, describing broad circles. When placed on its feet the 
bird lunged backward. 
March 31 — The bird was again fed as described. 
