248 Local Injuries. 
known as Achorion Schinkeinii or Tricophyton favosa, is 
a parasitic fungus of peculiar form and growth. It has 
a special preference for the hairs. Having entered the 
hair follicle it throws out a mass of fungoid cells around 
the base, and growing, encircles the hair in such a 
manner that the latter appears to be growing out of a 
cup. A number of these may unite, and thus a large 
and unsightly tumour is formed, with the loss of sur- 
rounding tissue by resulting absorption. It is supposed 
the dog catches the complaint from mice, in which it is 
quite common. The tumour is usually located about 
the head. It is also peculiar as emitting a smell not 
unlike the urine of the cat, probably derived from the 
course of destruction of animal tissue. 
Treatment consists of entire removal of all the diseased 
hairs and fungus crusts by means of a paper knife or 
suitable instrument, and immediately burned. Zhe dare 
jingers must not come tnto contact with the diseased mass. 
Appropriate dressings will be found in the list enumerated 
for Zinea tonsurans. The most effective are solution of 
corrosive sublimate (poison) and the nitrate of silver 
ointment. 
CHAPTER XIX. 
LOCAL INJURIES. 
Anchylosis, or Stiff-joint—Sprain of Muscle and Sinew—Congenital Deformity 
—Dislocations—Fracture of Bone—False Joint—Lameness—Sprain of 
Muscle—Sprain of Tendon—Lameness of the Feet—Carpet Fever—In- 
juries by Thorns, Nails, &c.—Raw, Bruised and Bleeding Feet—Mange of 
the Foot—Overgrown Claws—Wounds— Hemorrhage, or Bleeding. 
Anchylosis, or Szf-joim¢, is not uncommon in canine 
animals, being due to some injury and consequent in- 
flammation, with the formation of exoséosis, or bony 
deposit. The latter accumulates largely at the ends of 
the bones, eventually uniting them, causing the animal 
