. Fig. 37. The dotted lines iu this diagram represent the expansion of the solar edge of the hoof at the moment of over-extension of the fetlock-joint; b, the dotted line represents the change in form of the coronary edge under similar circumstances. Because of the shape of the cushion its change of form cannot be forwards (simultaneous pressure from above and below on to this wedge with its apex forwards must tend to give it a backward change of form). Because of the pastern being horizontal, and aiding in the downward pressure, its change of form cannot be upwards. And because of the ground
. Fig. 37. The dotted lines iu this diagram represent the expansion of the solar edge of the hoof at the moment of over-extension of the fetlock-joint; b, the dotted line represents the change in form of the coronary edge under similar circumstances. Because of the shape of the cushion its change of form cannot be forwards (simultaneous pressure from above and below on to this wedge with its apex forwards must tend to give it a backward change of form). Because of the pastern being horizontal, and aiding in the downward pressure, its change of form cannot be upwards. And because of the ground it cannot be downwards. It follows, therefore, that the movement must be backwards and outwards, being especially directed outwards because of its shape and the median lacuna in its posterior half—this latter, the lacuna.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecthorses, bookyear1906
