886 
ECZEMA EPIZOOTICA. 
youth, substantial alimentation, and more particularly agglo¬ 
meration. Sucking calves, from eight to fifteen days old, 
were more especially liable—though cattle twelve months old 
and, but rarely, six to eight years of age, were not exempt. 
The complication was frequent in well-conditioned, highly fed 
animals ; indeed, it might be said that it was only observed 
in good stables where milk was plentiful. The more closely 
packed the animals were, the more severe did the malady 
appear; and it was owing to this agglomeration, and the fact 
that the atmosphere was saturated with the virus, that this 
complication appeared to be due, as well as to the calves in¬ 
gesting the morbigenous element along with tlieir milk, which 
they derived from teats covered with vesicles and erosions. 
It was not until the third period of simple aphthous fever 
—towards the fourth or fifth day, or even later, when the 
aphthee in the mouth were in a forward state of cicatrization, 
—that there suddenly supervened a fresh access of general 
fever, more severe than in the first period. The animal 
became dull; standing was more difficult; the skin was very 
hot and the hair erect; shiverings, and trembling of the 
muscles were observed; the muffle was dry and burning; 
the ears sometimes cold, at other times hot; the eyes highly 
injected and brilliant, and the conjunctive violet-tinted; 
salivation became more abundant and verv foetid; and rumi- 
nation, until now regular enough, although difficult, was 
completely arrested. Soon afterwards appeared on the muffle 
and in the nostrils a new eruption of aphthe, passing quickly 
into a state of ulceration, and giving rise to perfectly round, 
but shallow, erosions, of an intensely red colour and easily 
made to bleed, which were covered by a dry, yellow, scaly 
crust, readily reduced to powder. The nostrils were clogged 
by dried mucus and an irritant ichorous discharge that 
excoriated the skin. 
These aphthee were accompanied by coryza, heaviness of the 
head, and sometimes a greater sensibility of the horns, which 
even became a little movable. The embarrassment in the 
upper air-passages occasionally induced dyspnoea; but no signs 
of implication were observed in the other parts of the respira¬ 
tory apparatus, in either the larynx or the lungs. A slight 
degree of meteorization generally increased the dyspnoea; the 
abdominal walls were painful on pressure, the loins inflexible, 
and the back arched. The animal frequently grunted, as in 
indigestion of the third compartment of the stomach. Not¬ 
withstanding this, how'ever, there were frequent and loud 
borborygmi, as well as diarrhoea. The faeces, at first very fluid, 
contained food scarcely altered, and much fetid sour-smclling 
