158 NEW +YiORKSZ OOLOGICALYSOGIET YY 
The blood vessels show no abnormality except in those areas of 
the anterior horns where the degenerated cells appear most fre- 
quent; here there seems to be perivascular gliomatosis of slight 
degree. 
Lumbar Cord.—Alterations in the lumbar cord do not differ 
from those found in the cervical and dorsal levels. 
Conclusions —A descending degeneration with poliomyelitis is 
disseminated throughout the cord, becoming more marked in the 
lower levels where the posterior root ganglia are also involved, 
causing degeneration of isolated fibers in the ascending tracts. 
It is a little difficult to reconcile the degenerations found in this 
cord without assuming some disease of the encephalon, and in 
all probability this was present. It is probable, however, that the 
lesions that gave rise to the most marked symptoms were the 
poliomyelitic changes. 
CASE IV. 
Macacus nemestrinus.—The animal exhibited the atrophies in a 
moderate degree, and the disease was of rather recent onset. The 
animal was killed by chloroform and the general post-mortem 
examination showed nothing of note. No gross alterations were 
evident in the brain or cord. 
Microscopically, the lesions present throughout the cord con- 
sisted of an atrophy and degeneration of the cells of the anterior 
horn, particularly in the lower dorsal and lumbar regions, but 
present also, though in lesser degree, in the cervical levels. 
Occasional degenerated fibers were found, scattered irregularly 
throughout the ascending as well as descending tracts, but no defi- 
nite systematic degeneration was present. 
Vascular alterations, chiefly an acute exudative arteritis, was 
present in the anterior horns in a few patches, and elsewhere many 
of the smaller vessels showed a chronic proliferative arteritis ; the 
larger vessels seem to be free from these changes. 
Conclusions.—This case apparently represents one of poliomyel- 
itis of rather recent origin associated with a chronic proliferative 
arteritis of the smaller vessels of the cord. 
CASE; 
Golden Baboon (Papio babuin).—This animal presented the 
typical clinical manifestations of “cage paralysis.” Its case was 
a mildly progressing one, extending over a period of two years, 
before terminating fatally. At times the animal suffered from 
