quarter, which contribute the most to the execution of 

 rearing. 



But if we consider the horse approaching the obstacle 

 at rapid pace, conditions are completely changed. We 

 have seen how at the gallop, from the first moment of 

 support, the horse with the horizontal croup has his hip 

 inclined in the best way for efficient action of the ischio- 

 tibials, and how, on the other hand, his ischio-tibials, 

 which are longer than those of the horse with the sloping 

 croup, will have more scope of action. 



The second period of the jump or the period of execu- 

 tion is characterized by the simultaneous straightening 

 of all the radii of the hindquarter and the length of che 

 femoral lever give advantage to the horse with the hori- 

 zontal croup. 



This horse, therefore, requires impetus in his jump; 

 but in these conditions, and if, besides, he adds to the 

 conformation of his skeleton a sufficient muscular power, 

 he will be a much more brilliant jumper than the horse 

 with the oblique croup. 



Who has not noticed the marked inferiority of the lat- 

 ter in the wide jump? 



Besides, the exceptionally good jumpers — Conspirateur, 

 Jubilee, Abricot, All-Fours, Double-R, Pouf — are not 

 noticeable for the slope of their croup. Quite the con- 

 trary; and one of the most celebrated examples of all is 

 still to be mentioned, namely, Jerry-M, the winner of 

 the " Grand Steeple Chase d'Auteuil " in 1910. 



C. Influence of the Shape of the Hindquarter upon 

 the Management of the Horse. 



Analysis of the play of the hindlegs brings to light 

 certain facts and explains the truth of certain observa- 

 tions, which in the eyes of their authors seemed to have 

 only an empirical value. 



The horse with a long and consequently an almost 



56 



