LOCOMOTION. 



617 



Pig. 461. 



Fig. 462. 



Pig. 461. — Lower face of horse's foot, hoof being removed. 1, heel; 2, coronary cush- 

 ion; 3, branch of plantar cushion; 4, median lacuna; 5, lamina of the bars; 6, 

 velvety tissue of sole. 



Pig. 463. — Lateral view of horse's foot after removal of hoof. 1, perioplic ring, divided 

 by a narrow groove from coronary cushion, 2, which ie continuous with plantar 

 cushion, 4, and joins vascular lamina, 3, through medium of white zone.* 



phalanx, the navicular bone, and the lower part of the second 

 phalanx; certain ligaments entering into the articulations ; the 



Pig. 463. 



Fig. 464. 



Pig. 463.~Hoof just removed from foot; side view, a, inner surface of periople, or 

 coronary frog-baud, with some hairs passing through; a', outer surface of same 

 at posterior part of foot; a", a section through the wall to show its thickness; & 

 to c, quarter of hoof; from 6 to front is ontside (or inside) toe, from c to d the 

 outside (or inside) heel; e, frog; /, bevel, or upper margin of wall for reception of 

 coronary cushion; g, keraphylla, or homy laminaB. 



Fig. 464.— Hoof, with outer portion of wall removed to show its interior, a, a, peri- 

 ople, or coronarjr frog-band; b, cavity in upper part of wall for coronary cush- 

 ion; c, upper or inner surface of "bar"; d, vertical section of wall; d', same, at 

 heel; e, horizontal section of ditto;/', horny laminae of "bar"; /", ditto of wall; 

 /'", lateral aspect of a lamina; gr, upper or inner surface of homy sole; k, .junc- 

 tion of horny laminse with the sole (the "white line"); i, toe-stay at middle of 

 , toe; ft, upper or inner surface of horny frog; I, frog-stay; m, cavity correspond- 

 ing to a branch of the frog; n, ditto, corresponding to body or frog. 



