NINTED ANNUAL “REPORT. 155 
more marked degree. In the lowest dorsal segments the cellular 
exudate is found passing into the cord with nerve roots. 
Lumbar Cord.—In some places the meningeal exudate has so 
infiltrated the cord that practically a condition of transverse myel- 
itis exists, otherwise the lesions are like those of the superior por- 
tions of the cord. 
Cauda Equina.—Sections show a very marked general small 
round-cell exudation about all the nerve fibers. Well-formed tu- 
bercles are frequent and in some cases have caused complete 
necrosis of the normal structures. 
Posterior Root Ganglia.—Sections of the posterior root ganglia 
of the lower levels show also an intense productive inflammation 
apparently following the nerve trunks. Degenerated nerve fibers 
are not numerous even in those of the cauda equina, and from the 
condition of the ganglion cells it seems highly probable that at 
least a part of the degenerated fibers are due to a disease of the 
ganglion cells. 
Conclusion.—Vhe condition clearly originated as a tubercular 
meningitis and the disease apparently started in the lower portion 
of the spinal canal, extending rapidly upward. 
CASE II. 
Common Macaque (Macacus rhesus)—This animal formed 
one of a large group of these monkeys and was not particularly 
observed, except that the case was rapidly progressive. 
The wasting of the muscles of the rear extremities was mod- 
erately well marked and paralysis of the extremities was com- 
plete when the animal was killed. No trophic ulcers had devel- 
oped and the body was not extremely emaciated, for the animal 
had continued to take its food fairly well, though not so anxiously 
as a normal one would. 
The gross examination of the cord and brain showed nothing of 
note, and the internal viscera were normal, except for a general 
deficiency in fat. 
MJCROSCOPIC EXAMINATION. 
Brain.—Sections taken through the left motor cortex showed 
nothing noteworthy, except a general dilatation of the lymph 
spaces. No degenerated fibers are present in either the sub-corti- 
cal white matter or in the left internal capsule. Cord—The mem- 
branes of the cord are normal. 
Medulla—Sections prepared by the Busch-Marchii method 
