10 July, 1919.] Hereditary Unsoundness in Horses 



417 



Family 11 — continued. 



11-31, 

 not 

 ex- 

 amined 



11-32, 

 not 

 ex- 

 amined 



■11-311, 



sound, 5 



-11-321, not 

 examined 



—11-3211, not ex- 

 amined 



— 11-32111, sound, 5 



The remaining families dealt with liave very few representatives, and 

 little comment is necessary in regard to them. Some of the members 

 have been referred to from time to time as being present in dams' 

 pedigrees. 



It will be BOted that the family numbers do not run in sequence. 

 This is due to the fact that some of the families were found to be 

 branches of others, and have been incorporated with them (family 10 

 may be taken as an example; this was found to be a branch of 2), while 

 many of them have only five or six representatives, from which no data 

 of value can be obtained, and have consequently been omitted. In all 

 76 families have been tabulated. 



FAMILY 12. 



12. sound, 6 



ri2 



< 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 



■1, sound, 5 

 -2, sound, 5 

 -3, sound, 5 

 -4, sound. 5 

 -5, sound, 5 

 -6, sound, D. A. P., 

 -7, sound, 6 

 -8, sound, 5 

 -9, sound, 5 

 -02, sound, 3 

 -03, sound, 3 

 -04, sound, 5 

 -08, sound, 5 

 -01, sidebone, 4 

 -05. sidebone, 4 

 -06, sidebone, 4 

 07, sidebone, 4 

 -09, curb, 3 



This is a short family of 19 members, the sire, sound at 6 years and 

 18 sons, 4 of them, or 22.2 per cent., were unsound. The unsoundness 

 appears to have been introduced through the dams, for — 



The dam of 12.01 was probably by a son of 1. 



The dam of 12.05 was probably by a son of 1. 



The dam of 12.06 was by 17.22, a sire of unsoundness. 



The dam of 12.07 was by 3.1022, of unsound line. 



12 was known to be sound long after the date of his examination. 



FAMILY 16. 



Was published in the first instalment of this article. May, 1918. 



FAMILY 17.* 



17-1, not 

 examined 



17-11, not 

 examined 



17-111, sound, a- 



17-112, notexamined — 



f 17 -1111, sound 3 

 17-1112 sound, :{ 

 17-1113, sound, 4 



17-1114, sound, a 



17-1115 sound, 3 

 17-1116, sound, 4 

 _17-1117, sound, 4 

 • — 17-1121, not examined 



17-11141, ringbone, 3 

 17.1-1142, sound, 5 

 17-11143, sound, 3 



-17-11211.sound, 3 



• Since this talile was prepared evidence lias been obtained whicli connect tiiis family with family 

 9* 17 being a son of 9-52, viz. 9 ■523. As the relationship is distant, consideration of Family 17 as a 

 separate family does not affect the general result. 



8029.— 2 



