150 



SCIENTIFIC HORSESHOEING. 



The structural change of cartihige 

 into bone arises from a deposit of lime 

 salts, and may be of rapid or slow 

 growth. The usual symptoms are 

 manifested by the presence of fever- 

 heat around the affected part, attended 

 by more or less soreness, stiffness or 

 lameness, and as the change advances 

 it will be apparent by enlargement and 

 by a sense of hardness to the touch. 

 This illustration indicates the general 

 appearance of a foot in this condition. 

 "When thus invaded the tendency is to 



T, ,^ „ increase, and no permanent cure can 



Fig. 47. outside appear- ' '■ 



ANCE OF SIDE BONES WHEN bc ctitected as the cartilao-e tissue can 

 DEVELOPED. ^^^^ ^^ Fcstored ; but in the early stages 



A, Enlargement of carti- of the disorder the calcification may 

 lage transformed into bone. i i i t • i • ^ 



B, Its eflTect shown by bulge ^e arrested and the thickening re-ab- 



of wall at heel. C, C, Ab- sorbed by the application of a sweat 



normal height of heels, t ■,• ^ rm • j.- 



_, t:, , . f ., , blister. ihere are many variations 



D, Extension of side bone -^ 



over pastern. E, Prolonga- of side bones, but the front feet are 



tion of side bone over the ^ t ui j. xi' r xu t^ 



most liable to suiter irom them, it 

 quarter. 



both cartilages on the same foot are 

 attacked at the same time, it is noticeable that they are less liable 

 to cause lameness than if but one side is affected. 



My drawings are samples of the development of side bones 

 on one side of the foot as a consequence of one heel of the hoof 

 being higher or longer — from coronet to base — than the other 

 which is provocative of such malformation. 



Where shoeing can be altogether dispensed with it will be 

 better for the natural relief of side bones than otherwise, but 

 where shoes are necessary they must be made to suit the condi- 

 tions of the foot and the nature of the work to be performed. 



In all cases, however, when dressing the foot, follow the di- 



