236 Diseases of the Skin. 



paralysis, and is often associated with severe abdominal 

 pain. Blindness may be also present. The disease 

 supervenes upon all forms of debility and anaemia, being 

 as common in the extreme condition of obesity as in 

 other instances. 



Treatment of the patient should be entrusted to the 

 canine surgeon. 



Parasitism of the nervous system of the dog is some- 

 what rare. The common form is the gid hydatid 

 Ccenurus cerebralis, derived from the sheep, which is 

 located in the brain, and is indicated by dulness, gradual 

 loss of sight, and an increasing tendency to move in a 

 circle, which point to compression of the brain. It is 

 questionable whether the animal lives long enough to 

 enable the parasite to effect its liberation by the usual 

 process of growth, invasion, and ulceration of the tissues ; 

 if so, the time of suffering may be shortened by an opera- 

 tion for liberating the offender. This is, however, some- 

 what doubtful. 



CHAPTER XVIII. 

 DISEASES OF THE SKIN. 



Alopecia, or Baldness — Anasarca, or Dropsy of the Cellular Tissue — Eczema, 

 Surfeit, or " Red Mange " — Erythema — Warts.— Parasitic Diseases of 

 THE Skin, Animal Para .ites : Scabies, or Sarcopiic Mange — Follicular 

 Mange — The Harvest Bui,' — Fieas — Lice — Ticks. Vegetable Parasites: 

 Tinea Tonsurans, or Ringworm— Tinea Favosa, or Honey-Comb Ringworm. 



The literature of skin disorders in canine animals has 

 remained incomplete during long periods ; but in recent 

 years observant men have laid all lovers of the race under 

 perpetual obligation by their diligent investigations, and 

 the liberal publication of their views and discoveries. It 

 was formerly thought that the dog could not perspire. 

 This statement implied the total absence of sudorific 



