ECZEMA EPIZOOTICA. 
887 
mucus. They were passed with difficulty; soon they became 
rare, less abundant, and almost exclusively composed of dried 
mucus, but never containing any pseudo-membranes, as had 
been remarked by German veterinarians. This diarrhoeic, or 
rather dysenteric, condition only lasted about three days; 
emaciation was rapid ; the fever remained, though it gra- 
duallv assumed an asthenic character; and if treatment did 
not succeed, the animal grew weaker on its limbs, staggered, 
and died unexpectedly. 
Often, in consequence of the recrudescence of the malady, 
the sores on the feet became ulcerous, and shedding the hoofs 
was imminent, if not inevitable; though the latter complication 
was somewhat rare, as well as the mammary affection. Some 
very grave cases of mammitis, however, were noted, which 
were extremely painful and did not yield to the ordinary 
method of treatment; they were often accompanied by a 
new eruption, followed by crusts, which obstructed the teats 
in a very troublesome fashion. In three cows an eruption 
was witnessed that covered the entire skin—a kind of surfeit 
—with tumours as large as the fist seated in various parts 
of the body, and which terminated in abscesses yielding a 
very thick pus. 
In young calves the affection progressed much more 
rapidly. The complication showed itself sometimes before 
the animal had been ill tw'enty-four hours; the creatures 
were then very prostrated, and had rigors; sometimes the 
head was much tumefied, and the eyes became lacrymose. 
The diarrhoea was more of a serous than a dysenteric cha¬ 
racter ; and their excrements were never composed exclusively 
of epithelial cells, as often happened with older animals. 
These calves frequently died before the third day of the 
attack. 
The pathological anatomy of the malady was interesting. 
In calves that had succumbed to this complication, the mouth 
was very red, as was the pharynx, true stomach, and even 
the intestines. At times there were no traces of aphthae in 
the mouth; the epidermis of the tongue was simply relaxed, 
and detached in some points ; but in a far larger number of 
cases, well-marked aphthae were met with in the true 
stomach and on the mucous membrane of the duodenum. 
These were superficial erosion, appearing as if stamped out 
with a sharp instrument, and situated in the middle of ecchy- 
mosed patches; these patches of ecchymoses in calves have 
been seen to result from a haemorrhagic inflammation of the 
mucous follicles, as in older animals. All the calves that 
perished from aphthous fever did not present these cadaveric 
