348 
W. L. WILLIAMS. 
% 
The penis is said to be sometimes hypertrophied (enlarged) 
and sometimes atrophied (wasted), but in the present outbreak no 
marked deviation from the normal size has been noted. Writers 
also generally mention that in some cases the mucous membrane 
of the penis may be unnaturally red, or be the seat of bluish or 
violet elliptical patches, or of yellowish-white marks, probably the 
result of pre-existent eruptions, none of which have been noted in 
the present outbreak. In a large proportion of cases there is a 
loss of retractile power in the penis, so that it usually hangs partly 
out of the sheath, in the prepuce, or in extreme cases, it may hang 
at full length, entirely out of the prepuce, wholly powerless. 
The sexual desire usually remains unimpaired throughout the 
disease, and in many animals the power to copulate is but little 
impaired, but in the earlier stages, during the tumefaction of pre¬ 
puce and penis, either from excessive erection or other cause, the 
stallion fails in many cases to effect coition, and late in the course 
of disease the same inability may arise from loss of power in the 
penis or from the extreme paralysis of the posterior parts. 
The urethral opening may be normal, or abnormally red and 
swollen, and in some cases there is a muco-purulent discharge from 
the urethra, while in others there are occasional involuntary emis¬ 
sions of semen, mixed with mucus and pus, containing a few dead 
or very inert spermatozoa. Urination is usually frequent and at¬ 
tended with some pain, and the urine may vary from normal to 
thick, yellowish, viscid, etc., or be mixed with mucus or pus from 
the urethra. In some cases polyuria or diabetes is well marked. 
Emaciation , with dry, staring coat, is noted in a majority of 
cases as the malady advances, but is not uniformly seen and is 
usually of a more or less intermittent character, progressing rap¬ 
idly for a time, then halting, perhaps improving, when the ema¬ 
ciation again sets in with increased virulence, being especially 
marked in the hind quarters. The symptoms of paralysis and 
intermittent lameness in the posterior parts appear much the same 
as in the mare. There is a swaying, unsteady gait, as if the loins 
were affected, lameness in one or both hind legs, and a jerky, 
stringhalt like gait. 
Some authors mention that in some cases there appear peculiar 
