474 
II. .IAMES. 
fiom cerebrospinal meningitis; the animal as a rule thrashes 
"bout more ; the hind-quarters remain immovable and the horse 
nearly always gallops with his fore feet, a peculiar symptom 
never observed m cerebro-spinal meningitis. We should have 
no i iculty in distinguishing it from spinal meningitis, which 
occurs from well-marked causes at any season of the year. In 
simple spinal meningitis we have a full, hard pulse, high tempera- 
uic perfect deglutition and absence of retinal congestion. Sun¬ 
stroke occurs at a different time of year to that in which cerebro- 
sp.na meningitis chiefly prevails, and the high temperature, pecu- 
, ,al tlr > nt ‘ s s of the skin, occurrence on a hot day, and general 
history of the case, are sufficient to prevent our falling into error 
10 a ,S0lute distinction can be drawn between epizootic cerebro¬ 
spinal meningitis and the sporadic malady of thes ame name. 
Post-Mortem Appearances .-Though many pathological states 
of the brain and spinal cord have been described by various 
authorities, there is still a remarkable difference of opinion 
among the profession on the subject. Whether this arises from 
most post-mortems having been made on fulminant cases, in 
w ‘mb death occurred too quickly for local lesions to be developed 
is hard to say ; the same thing obtains in the human subject and 
has led to its being classified by some among the nervous or func¬ 
tions diseases of the nervous system. Dr. Holcombe has never 
on' . an ->' post-mortem appearances that were constant and couid 
explain the pathology. Dr. Very of Boston, has made rnanv 
post-mortems, but never saw any lesion in the spinal cord or any 
of its membranes, beyond finding a little fluid which he was 
satisfied was not the result of any diseased condition previous to 
death. Dr. Rogers says that you will usually find the membranes 
of the brain and upper part of the spinal cord more vascular than 
normal, with increase of serum in the sub arachnoidean.space and 
m the ventricles and in some cases an abundant exudation of 
thick, yellowish lymph at the base of the brain, together with 
oa tma of the brain and cord ; and this loosening and separating 
of the nerve elements possibly accounts for the motor and sensory 
disturbances seen during the course of this disease. In those 
few cases which die of apoplexy the clot will usually be found 
