520 HORN. 



nail, the body may be pushed upwards, nay, it sometimes 

 happens that the nail, instead of growing horizontally, shoots 

 perpendicularly upwards, the space underneath being filled 

 with a thick accumulation of the loose cushiony substance." 



ON SHOEING. 



On the high claims to the veterinarian's attention of this 

 department of his- calling, little need be urged in this work, 

 since - most writers, and almost all able men who have in 

 any way advanced the art of managing horses, have amply 

 set forth the requirement of a rational system of shoeing to 

 be generally carried out in practice. 



It is the inconsistency between that which is very gene- 

 rally acknowledged to be an essential requirement, and the 

 indefinite diversities of prevailing customs, which prompts us 

 to take up the matter with becoming earnestness, as the one 

 of all others which interests a large proportion of readers. 



HlSTOEY OF THE AET OF SHOEING. 



It would be going beyond our limited bounds in this 

 place, to attempt any lengthened historical account of the 

 subject. Still it is believed that nothing tends more to 

 establish knowledge 'of a science, or an art, than the tracing- 

 its past history, each earnest worker thereby fortifying his 

 understanding on the means by which advances have been 

 achieved, the influences which have tended to hinder, and 

 the causes of failure, where such has happened. 



Man, unlike every living creature besides, works to-day 

 by the light of past ages, and owes to his fellows, and to 

 future generations, the obligation to use his talents to the 

 utmost in forwarding the cause of truth in every thing he 

 undertakes; whilst the lower animals, having no such mis- 



