. A text-book of horseshoeing for horseshoers and veterinarians. Horseshoeing. 48 HORSESHOEING. tective layer (Fig. 29, d) is the thickest, strongest, and most important of the three layers; it forms the principal mass of the wall, and is developed or secreted by the coronary band, which fits into the coronary groove. There are in the coronary groove a great number of small, funnel-shaped openings into which project the horn-producing villi or papillae of the coronary band. Fig. Ji The outer wall of the hoof has been removed by cutting vertically through the middle of the toe, down to the
. A text-book of horseshoeing for horseshoers and veterinarians. Horseshoeing. 48 HORSESHOEING. tective layer (Fig. 29, d) is the thickest, strongest, and most important of the three layers; it forms the principal mass of the wall, and is developed or secreted by the coronary band, which fits into the coronary groove. There are in the coronary groove a great number of small, funnel-shaped openings into which project the horn-producing villi or papillae of the coronary band. Fig. Ji The outer wall of the hoof has been removed by cutting vertically through the middle of the toe, down to the upper surface of the sole, then horizontally backward into the quarter, and, finally, upward through the quarter: a, periopllc horn-band; 6, coronary groove; it turns inward and forward at c to form the upper border of the bar; A, surface of section of the wall at the toe; d', at the quarter; e, surface of horizontal section of the wall near its lower border; /, keraphyllous layer of the wall; at/' it turns forward and inward to cover the bar; /", homy leaves standing free and passing insensibly into the white horn of the middle layer or true wall; g, homy sole; A, white line; j, small horn-spur in middle of toe; k, part of homy irog which is in intimate union with the upper edge of the bar; I, frog-stay of horny frog; it divides the trough-like depression of the upper surface of the frog into m, the two upper channels of the frog. (3) The inner layer or keraphyllous layer (Fig. 29,/) consists of prominent, parallel horn-leaves lying side by side over the entire inner surface of the middle layer of the wall, and continu- ing beyond the buttresses to the ends of the bars (Fig. 29, /'). This layer of horn-leaves (keraphyllous layer) has in a general way about the same shape and arrangement as the layer of fleshy leaves (podophyllous layer) which secretes it; for the horn- leaves fit in with the fleshy leaves in such a way that every fleshy leaf is embraced by two horn-leave
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Keywords: ., bookcentury1800, bookdecade1890, booksubjecthorseshoeing, bookyea
