102 DISEASE IN WILD MAMMALS AND BIRDS 
Bone marrow appears as widely separated large, fat globules with 
intervening granular edematous material and no hematopoietic ele- 
ments. Blood capillaries numerous and highly congested. 
Although the notes fail to discuss the gross appear- 
ance of the bone marrow, the amount of alteration in its 
microscopy and the relatively small output of pigment 
in the liver, seem to substantiate the determination of 
aplastic anemia ; it is unfortunate that the blood smears 
could not be used in the decision. At all events the con- 
dition of the intestinal tract, of the heart, liver, spleen, 
and adrenal, justify us in classing the case as one of 
primary anemia. The next and last instance is of the 
same type, although I am inclined now to differ from the 
diagnoses made at the autopsy table, that of aplastic 
anemia, and to place it in the hemolytic variety. The 
rapidity of the fatal attack, the redness of the marrow, 
the excessive pigmentation, and the prominence of recent 
degenerative lesions in the organs are much more like the 
changes of a primary hemolytic intoxication than of an 
aplastic anemia. 
Gray Fox ( Canis cinereo ) . 6 "Weight four pounds, adult, was in the 
exhibition two years, but in good condition until two weeks before 
death, w-hen it stopped eating and rapidly fell away. 
Diagnosis. — (Aplastic) Primary anemia. Zenker's Hyaline of heart 
and skeletal muscles. Mucoid degeneration of bone marrow. Conges- 
tion of bone marrow. Atrophy of hemopoietic elements in bone marrow. 
Hemosiderin pigmentation of liver. Atrophy of liver. Congestion of 
liver. Congestion and fatty infiltration of kidney. Patulous lumina 
in adrenal and absence of pars glomerulosa. 
External appearance of coat good. Decomposition advanced in intes- 
tines. Skin and subcutaneous tissue faintly yellow. Poorly developed, 
dark muscles and fat. Respiratory tract normal throughout. Pericar- 
dium glistening, transparent, and pale, Avith no adhesions. Heart a little 
too pale, consistency slightly soft. Normal or slightly increased size 
of liver, with smooth surface and sharp edges, consistency friable, 
and of a brownish red with rusty coloring. Spleen normal. Kidney 
normal in size, shape, location, and consistency. Capsule strips easily, 
and of a faintly yellow, under general red, coloring. Adrenal normal. 
Mouth and teeth normal. Stomach, serosa and wall normal. Mucosa 
shiny, autolytic, muddy red. Ileum, agminated follicles swollen. Feces 
from colon examined microscopically. Pancreas normal. Bone marrow 
