218 
REVIEW. 
evacuation being bloody, and foetid to a remarkable degree. The 
animal, continually in pain, exhibits symptoms of colic, often seek- 
ing to lie down, but if he does he soon rises again. Respiration 
greatly accelerated ; nostrils widely dilated. Pulsation of the heart 
tumultuous. At length, beginning to stagger, he falls, either to die 
an easy death, or to expire amid agonizing convulsions. 
Whenever, however, recovery in place of death follows, such 
symptoms as we have last detailed do not occur, or with modified 
force and character. 
When blood has been drawn for experiment under such cir- 
cumstances, at a time when adynamic and biliary symptoms pre- 
vailed, it has been found to contain but little hematosine, but, on 
the contrary, a large proportion of serum of a light greenish hue. 
The DISEASE MAY LAST from four, seven or eight, to thirty days. 
Relapse is extremely likely, even under every prospect of con- 
valescence, unless great care be taken. 
The Diagnostic at the commencement is difficult, even impos- 
sible, when the characteristic symptoms are but scantily and im- 
perfectly developed. 
The affections whose symptoms most resemble those of the dis- 
ease before us are phlegmasiae of the intestinal tube, and in par- 
ticular of the brain. Should sudamina be detected, they are, as 
in human medicine, to be regarded as definitely characteristic of 
typhoid fever. 
Prognostic for the most part unfavourable ; and the more so 
according as the nervous accompaniments are more numerous, more 
violent, and more early in shewing themselves : the stupor great, 
the strength failing more, the pulse faltering, the diarrhoea greater, 
more bloody and fetid, &c. 
Our Etiology is all at fault. In truth, we know not the de- 
termining causes of typhus. 
The post-mortem states are by no means agreed upon by 
those who have reported them. Most agree that the digestive 
canal exhibits the most constant and marked symptoms of disorder. 
The Mouth presents marks of inflammation, and on occasions 
aphthae or ulcerations, though commonly too superficial to destroy 
the lining membrane. 
The pharynx sometimes the same as the mouth ; at others nothing. 
