806 



////: . 



or i in 8BX8E8. 



Fig. :i74. 



HOOF JUST REMOVED FROM THE 

 FOOT; SIDE VIEW. 



of inflexion of its extremities; while tin s. extremities themselves, passing 



along the inner border of the sole, are termed the Lars. 



Examined with regard to the direction 

 that it affects in its relations with the 

 ground, this envelope is seen to be much 

 inclined in its middle region or toe, and 

 this obliquity gradually diminishes until 

 the posterior part of the quarters is reached ; 

 at this point the wall is nearly perpen- 

 dieular. 



The following are the characters it 

 offers in the conformation of its faces, bor- 

 ders, and extremities : 



The external face, convex from side to 

 side, and perfectly straight from the upper 



f ,. to the lower border, is smooth, polished, 



a. Inner surface of penople, or coronary , . . 



frog-band, with some hairs passing and shining : an appearance it owes to a 



through ; a', Outer surface of same thin horny layer, independent of the wall 



at posterior part of foot ; a", A sec- p rO per, designated the periople. 



turn through the wall to show its T} j - , f Qn th fc 



thickness; 6 to c, Quarter of the * ^ . .' . 1 



hoof, from b to the front is the out- of the wall, a kind of ring, continuous With 



side (or inside) toe; from c to d the the bulbs of the plantar cushion, and with 



outside (or inside heel) ; e, Frog ; /, faQ frog, of which it is only a dependency ; 



Bevel on upper margin of wall for respon( Ji n g by its upper margin, to the 

 reception of coronarv cushion ; a, i i_ i_ ? 



Keraphylla, or hornv'lamin:.-. perioplic ring, which secretes it ; towards 



the lower part of the wall it is gradually 

 lost, friction incessantly thinning and destroying it. 



The inner face presents, over its entire 

 extent, the white parallel leaves which 

 dovetail with the lamime of the podo- 

 phyllous tissue. Collectively, these arc 

 named the IcerapTiyllous tissue. 



The superior border is bevelled-olV, 

 on its inner aspect, into a circular con- 

 cavity, into which the plantar cushion is 

 received. This excavation is named the 

 cutigeral cavity, because of its relations ; 

 it offers on its surface a multitude .i' 

 minute openings the commencement of 



HOOF. WITH OUTER PORTION OF THE WALL ,, , , . -,. , i .1 



REMOVED TO SHOW ITS INTERIOR. ^ h ?7 CanallCUll which rCCClVC tllO 



a, a, Periople, or coronary frog-band ; 6, Vlllosities of the cutldtins. 

 Cavity in upper part of wall for core- The inferior border, in contact with 



nary cushion; c, Upper, or inner, surface ^ e ground, and subjected to wear, in 

 of "bar;" d, Vertics 1 section of wall ; d' ^ d animals j g united inwardly, :md 

 The same at the heel; e, Horizontal ' .y.' 



section of ditto ; /, Horny lamina; of m the most intimate manner, with the 



bar ; /", Ditto of wall ; f", Lateral aspect circumference of the sole, 

 of a lamina ;</, Upper, or inner surface r fhe extremities, constituted by tlie 



of the horny sole ; h, Junction of the reflecte( J an d re-entering prolongations 



horny lamina; with the sole (the "white . Al , 



line'V, .', Toe-stay at the middle of the known as the fear* form, outwardly, the 



toe ; k, Upper, or inner surface of the external side of the lateral lacunae of 



horny frog; /, Frog-stay; m, Cavity the frog: they are provided, inwardly, 



corresponding to a branch of the frog; ^.jj.jj l, uu j, iro lik c the rest of the wall. 



c : The upper margin of these prolonga- 



375. 





