HEREDITARY UNSOUNDNESS. 709 



lenient with them than with animals that are given more time to 

 mature. Besides this, they are not put so much on their haunches, as 

 are cross-country horses and troopers. 



Laminitis (p. 184). — As far as my experience goes, the fact that a 

 sire or dam having suffered from laminitis, even with grave changes in 

 the feet, would not injuriously affect the shape of the feet of the 

 offspring, and would not predispose the offspring to laminitis. At the 

 same time we must remember, that a horse or mare with naturally 

 weak flat feet (which would be ill suited to resist the causes of 

 laminitis) would have a strong disposition to transmit the defective 

 shape of feet to the foal. 



Navicular disease (p. 206). 



Ophthalmia, periodic (p. 341). 



Ossification of the lateral cartilages (p. 280). 



Pasterns twisted. — Here the toes are turned either in or out. 



Ringbone (p. 249). — Any form of ringbone is a most objectionable 

 defect in a stud animal. 



Roaring (p. 380). 



Side hone (p. 280). 



Sight, congenital defects of; supposing, that they affect the animaPs 

 usefulness. 



Spavin, hog. — See " Bog-spavin" (p. 708). 



Spavin, hone. — See " Bone-spavin " (p. 708). 



Splints (pp. 232 to 235). — Splints should be viewed with great suspi- 

 cion in mares and horses which are reserved for breeding purposes ; 

 for the law of heredity is well marked in the tendency, possessed by 

 some animals, to throw out bony deposits on the limbs, at and 

 below the knees and hocks. 



Thick wind (p. 392). 



Thoroughpin. — See " Bog-spavin " (p. 708). 



Whistling (p. 380). 



