776 MIDLAND COUNTIES VETERINARY MEDICAL ASSOCIATION. 
instead of free elimination from the excreting and secreting surfaces, 
there is the opposite condition of dryness, or as it is commonly 
said, supressed secretion. In all acute inflammatory conditions we 
know this suppression of secretion to be a bad sign. What is the 
meaning of it? The meaning is most simple, and it is this. 
Under a given accumulation of heat, as near as I can estimate an 
increment of from seven to eight degrees, there is an act of contrac- 
tion of the whole arterial system, and especially of the extreme or 
terminal parts of arterial vessels, the vessels resist, there is obstruc- 
tion, congestion some would call it, and as a necessary con- 
sequence there is diminished excretion or secretion from the 
excreting and secreting surfaces. On this follows that accumulation 
of water in the blood itself to which I called your most earnest 
attention in my last lecture. Upon the accumulation of water 
follows that tension of the arterial pulse which runs so steadily 
with suppressed secretion. Upon this often follows rapid accumula- 
tion of fluid in serous cavities, or exudation of fluid in the least 
resistent organs, the cellular exudations of local upon general 
inflammation. 
“ At this stage there may be another series of symptoms suddenly 
developed ; as if the rapidly speeding engine had been suddenly 
reversed there may be slower motion, gradually falling temperature, 
and collapse. The change indicates in nearly every instance that 
there has been separation of fibrine in the heart. This separation has 
stopped or arrested the current of blood at the main, and virtually 
all is over. In the human subject we recognise by external signs 
this condition, constantly in the inferior animals we produce it 
synthetically, and determinate it with precision. Here, in illustra- 
tion, is the dead body of a cat : in this animal there was during life 
an induced increment of heat or fever. The fever progressed until 
the mean temperature of the animal had reached an increment of 
nearly ten degrees, then the animal began to ‘ sink.’ She might 
have struggled on hopelessly for hours, as human bodies do, but we 
could in her case put her quickly to death in sleep, by making her 
inhale the vapour of ether. We did so, and at once we laid bare 
and laid open the heart ; see what has happened, the right cavities 
are almost filled with a firm separation of fibrine. Of the many 
similar specimens from the human subject which have been before 
us there is not one specimen more distinct than the specimen in our 
hands. 
“ In every sense, in respect to colour, in respect to separation of 
fibrine, in respect to running together of the corpuscles, the blood 
during induced inflammatory fever is the same as is the blood of 
the patient who is suffering from ordinary acute inflammatory 
fever. 
“ Such is induced inflammatory fever. We are meeting with the 
identity of it in every day practice on the human subject. We never 
see a case of acute inflammatory disease but we see the increment 
of heat. What we have to feel in all its fulness, and to appreciate 
in all its breadth, is the grand truth that every symptom, primary or 
