680 Journal of Agriculture, Victoria. [11 N"ov., 1918. 



Through the progeny of 7.2 we find 16.5 per cent, unsoundness, the 

 descendants of 7.21 showing none, though many mature animals were 

 seen. 



7.22 shows four unsound descendants, of those which can be traced 

 on the dam's side, 7.2216 and 7.2219 were from the same mare by 1.335 

 — apparently a sound horse, but of very unsound family ; the dam of 

 7.22107 was by 3.1, a very unsound line. There is, therefore, pre- 

 sumptive evidence of the taint having come down through the female 

 side, for a large number of the progeny examined was 5 years old at 

 examination ; had the sire been responsible, a greater number would 

 have been unsound. 



7.23 shows more unsoundness in his progeny than any other indi- 

 vidual of this family. The unsoundness appears to have come through 

 7.2311, which was from a mare by 4.12, an unsound line — the taint was 

 probably carried to his sons, and accentuated by mating with mares of 

 tainted breeding, for we find that — 



7.23111 and 7.23112 were by brothers not recorded in these tables. 

 7.23118 was from a mare by 9.311, an unsound line. 

 7.231103 was from a mare by 1.031, an unsound sire. 



The remaining members cannot be traced through their dams. 



Of the other unsound descendants of 7.23, a search through their 

 pedigrees shows the following : — 



The dam of 7.2313 was by a son of 1. 



The dam of 7.2314 was by either 4.13 or 4.21, of unsound family. 

 The dam of 7.231215 was by 21.19, apparently sound; the grand- 

 dam was by 7.492, already referred to. 

 The dam of 7.231231 was by 3.3, an unsound line. 

 The dam of 7.231551 was by 1.031; she was also dam of 7.231103 



above. 

 The dam of 7.23152 was by 4.12, probably unsound; the granddam 



was by 3. 

 The dam of 7.231743 was by 9.51, a tainted line. 



The remainder cannot be traced. 



7.24 was unsound ; his dam was by the sire of a very unsound family. 

 Only one of his sons has been found unsound, the others being mostly 

 3-year-olds. The unsound son was from a mare by 9.31, a sire of un- 

 soundness, and the granddam by 38, showing that when there is taint 

 on both sides unsoundness appears at early age. 



7.25 was sound as an aged horse,. and a number of his progeny were 

 4 and 5-year-olds at examination, and found sound, yet one, 7.254, was 

 unsound at 4 years old; the dam of this horse was by 2.2102, an unsound 

 horse. 



We come next to consider 7.3. This sub-family is dealt with in two 

 divisions, that through 7.311 being one in which 467 horses have been 

 examined, whilst from the remaining sons of 7.3 only 75 horses have been 

 recorded. 



None of the sons of 7.311 has been examined, but in 209 of his grand- 

 sons 9 per cent., or 19 only, were found unsound. Unfortunately, the 

 dams and granddams of a number of these cannot be traced far enough 

 to connect with sires in these tables. As far as can be ascertained, they 

 show as follows: — Ten of the sons of 7.3112 were examined; three were 



