SANDCRACK. 185 



horn, by means of the application of oil of turpentine 

 and spirits of wine — equal parts of each, after having 

 cut out the corn with the buttress. 



This dressing should be applied for three consecutive 

 days, when the horse should be shod with a leathern 

 sole of the strongest hide, and the hoof should be stuffed 

 with tow, saturated with the above dressing. This will 

 enable the horse to resume moderate work without in- 

 jury to the corn. Corns most frequently arise from 

 shoes being left on too long, whereby the inner heel of 

 the shoe works in and presses on the sole between the 

 crust and the bars. 



SAXDCEACK. 



Sandcrack consists in a separation of the fibres of 

 the hoof, owing to a want of gelatinous secretion, thus 

 causing fissures or cracks, which sometimes are so ex- 

 tensive as to admit of the introduction of extraneous 

 substances, which cause violent inflammation and some- 

 times even a morbid growth of the sensitive lamina?, 

 and thus severe lameness is the result. 



This disease is said to be limited to hot and dry 

 districts entirely ; but I have known as many severe 

 cases on swamps and lowland meadows, as in upland 

 dry pastures, and I am disposed to think that the pre- 

 disposing and exciting causes are constitutional. The 

 treatment should consist in cutting the edges of the 

 cracks with a knife until the crust is thinned so as to 

 be flexible, a poultice should then be applied for two 



