DISEASES OF POULTRY. 267 



damp and rainy weather, this disease is very likely to exhibit 

 itself. 



The symptoms are, a stiffness of the limbs, and manifest pain 

 in the attempt to move about, which also renders the gait 

 unsteady. 



Remedy. Warmth and shelter, with a cooling and opening 

 diet. 



This disorder is almost confined to old fowls, and therefore 

 the opportunity afforded for observing it but seldom occurs. It 

 will not always repay the necessary trouble to attempt a cure. 



The symptoms are somewhat like those of rheumatism, but a 

 swelling of the joints is the most marked characteristic. 



Remedy. Sulphur, mixed with scalded bran or soaked 

 bread. Pellets of colchicum are also recommended. 



IV. DISEASES OF THE BRAIN. 



The structure of the brain in fowls is very peculiar. There 

 are two distinct parts, one unmarked by convolutions ; and the 

 other, which may be called the cerebellum, is distinguished by 

 cross parallel streaks. In several other respects, there is an 

 important difference between the brain of fowls and that of 

 quadrupeds or man. 



I. APOPLEXY. 



The principal disorder to which the brain is subjected, among 

 fowls, is what most resembles apoplexy. Some writers have 

 spoken of this disease under other names, as Dr. Bechstein, 

 who calls it epilepsy, and Mr. Clater, who chooses to designate 

 it as the megrims. The causes are alleged to be, improper 

 food, and general neglect or improper treatment. M. Flou- 

 rens, who has devoted considerable attention to the subject, says 



