338 DISEASE IN WILD MAMMALS AND BIRDS 
ulosa are somewhat stouter than common. . The cells of 
this layer take the stain a little more deeply than usual, 
but are other^vise negative. The layer separating cortex 
and medulla is occupied by a band of well formed con- 
nective tissue which is not proceeding inward but 
outward and so encroaching upon the zona reticularis as 
to remove it completely in places, in others to make 
isolated islands of its cell groups. Fine lines of connective 
tissue are penetrating from this into the middle layer but 
not disturbing it as yet. The connective tissue septa pene- 
trating the medulla are somewhat ^^dder than one would 
expect but show no activity in their growth. The medulla 
is somewhat broken up, vacuolated and the chromophilic 
cells are not especially prominent, indeed some of them 
seeming to have undergone necrosis." A puma {Felis 
concolor) died after a sickness of two weeks from acute 
gastroenteritis with its usual visceral associations, includ- 
ing acute nephritis, and Tv^th calcifications in the adrenals. 
These structures were quite firm and nodular, on section 
tough and resilient. ''The cortex is irregular, bro^vn, 
with paler browTi medulla. Areas of calcifications appear 
as small dots, as linear formations and in some places 
seemingly around blood vessels. Histological section 
shows marked vacuolization of cells, particularly of cor- 
tex. There is a diffuse overgrowth of connective tissue 
w^hich has become hyaline. Here and there smaU cal- 
careous deposits may be seen but no massive areas as 
mentioned above. ' ' 
A Himalayan Thar (Hemitragus jemlaicus) came 
to his end, after a history of convulsions, from nephritis, 
which had resulted in general edema including the 
serous sacs, and an associated cardiac dilatation. 
His adrenal was egg-shape, of normal size, ^vith a 
wide, irregular dull brown cortex and a homogeneous 
opaque, darker brown medulla. ''Histologically the cellu- 
lar structure of the cortex is partly destroyed, partly 
