General Diseases. 355 
appear on the head, and thence gradually spread to other 
parts of the body ; these vesicles subsequently break, and’ 
the resulting scab falls off in due course. 
“A pack of hounds ate the carcases of some sheep, dead 
of clavelée (small-pox). Seventeen of them became ill. At 
first, distemper was suspected, as the dogs were low-spirited, 
weak, paralytic in their limbs, and had a viscid, greenish 
discharge from their nostrils. A copious crop of ‘ pustules’ 
appeared, and the disease was thereafter, rightly or wrongly, 
regarded as small-pox. Eleven died. 
“It has been stated that some dogs were infected from 
sheep with this disease, during the recent Wiltshire 
epidemic; and that in both animals the disease was identical 
in its symptoms. 
“In small-pox the skin is affected in the following 
manner:. The skin of the belly, groin, etc., is redder than 
usual, and dotted with small roundish spots, either isolated 
or irregularly clustered together. Each spot gradually gets 
larger, and its centre becomes prominent and pointed, and 
contains a clear fluid, which subsequently acquires a pus- 
like appearance. Each spot is now flattened; the contained 
fluid escapes on the rupture of its envelope; scabs form from 
the drying of the fluid, and gradually fall off. In some parts 
of the body a permanent minute scar remains, and the hair 
is destroyed for good.” 
Mr. Fleming observes :* “This is a rare aed and may 
be developed directly or by contagion ; it is supposed to be 
also produced by the variola of man and of the sheep. It 
chiefly affects young dogs, although old animals are not 
exempt. One attack ensures immunity for the remainder 
of the dog’s life. 
- “ Symptoms.—The disease commences with fever, which 
continues for two or three days, and is followed by the 
appearance—over a large surface of the body, though 
rarely on the back and sides of the trunk—of red points,’ 
* © Veterinary Sanitary Science,” vol. ii. p. 98. 
