PKOPOKTIONS OF HOOF. 



189 



the oblique, and the upright foot. A few remarks on the forms 

 of hoof belonging to these respectively may here be appropriate. 

 In the first place, the wall of the toe should correspond in 

 direction with the general axis of the three terminal bones of 

 the digit, and just as one speaks of an oblique or upright foot, 

 so one might speak of the corresponding forms of hoof. In 

 the normal hoof the wall of the toe forms an angle of 45° to 55° 

 with the ground (fig. 166). When the angle is less than 45° 

 the hoof may be described as oblique (fig. 165). Such a hoof 

 has comparatively a long toe and low heels. When, on the 

 other hand, the angle is greater than 55°, the hoof is upright 

 (fig. 167), possessing a comparatively short toe but high heels. 

 In the latter the anterior, in the former the posterior, half of 

 the hoof carries the greater weight. The proportion already 

 stated approximately as 1 : 2 : 3 or 1^ : 2 : 3, which should exist 

 between the height of the wall at the heel, quarter, and toe, 

 is naturally disturbed in changes of other parts of the hoof. 

 The above is true of hind as well as of fore hoofs, though in 

 general the normal hind hoof is about 5° more upright than 

 the fore. 



The following summarised account from Lesbre and Peuch 

 sets forth, from another standpoint, approximately the same 

 \iews expressed in the foregoing pages. 



The walls of the quarters in fore-feet form an angle of 10° 

 to 12° with the vertical ; in hind- feet of 6° to 8°. In fore- 



FIG. 182. 



Fig. 183. 



feet the coronary circumference is about -g- that of the plantar ; 

 in hind-feet about y. Viewed from the side, the toe of the 

 fore foot forms an angle of nearly 50° with the ground; that 

 of the hind an angle of 55°. The heel is nearly parallel with 

 the toe, and should be at least half ns high. 



