10 Ar(i-., 191S.] Hereditary Unsoundness in Horses. 



477 



Family 4- — continued. 



4-42, 

 not ex- 

 ami nod. 



4-421, not 

 f.'camined 



4-4211, not 



examined 



4-42111, not 

 examined 



4-421111, not 

 e.xamined— 



4-421112, not 

 examined 



•4211111, 



sound, 4 

 •4211112, 



sound, 3 

 •4211113. 



sound, 3 

 •4211114, 

 side- 

 bone, 3 

 4211121, 



sound, 6 



Family 5. 



Very few members of this family have been recorded, but as some of 

 the sires appear in dams' pedigrees, the table is reproduced. 



The only comment necessary is that 5.11112 was from a mare whose 

 sire was probably 1.3311, a defective horse; while the dam of 5.11112 

 was probably by 9.3127, a sire of unsoundness. 



This is another short family. It is divided into two branches, 6 and 

 6a, related to one another as follows : — 



Not examined 



Not examined 

 Not examined 



Not examined 

 Not examined 



Not examined, 

 6 



Not examined, 

 6a 



From a study of the tables, one is led to believe that the family is 

 sound, though there are not sufficient members recorded, nor can the 

 pedigrees through the dams of the unsound ones be traced far enough, to 

 allow of a definite pronouncement. In the progeny of 6.11, a number 

 of mature horses are seen which are sound, and the only unsound one 

 is a three-year old — possibly the mare is responsible for this. 



The dam of 6.1211 was most probably by 9.128, an unsound horse, 

 and the dam of 6.13 was by a son of 3. 



6.14111 was from a mare by a half-brother of 1. 



