Fig. 65.—Frost-nails, various.
A well-managed stud of horses which is required to face all weather and to work every day through an English winter should, from December 1st to March 1st, be shod in such a manner as to be easily and speedily provided with mechanism which will afford secure foot-hold. This may be effected by the use of moveable steel "roughs" or "sharps." Of course the cost is the argument against them, but this should be considered in view of the probability or certainty of loss which will follow from neglect. If we allow common humanity to animals to enter into the consideration, economy will be served by adopting a well arranged system of roughing. Every good horseman appreciates the enormity of over-loading, but neglect of roughing causes just as much cruelty. A horse that on a good road can properly draw a ton would be considered over-loaded with two tons, and his struggles to progress would at once attract attention. The same animal with half a ton on an ice-covered surface would suffer more exhaustion, fatigue, and fright, and run more risk of fatal injury than in the case of the over-loading, but his owner who would indignantly repudiate the one condition will designedly incur the other.
Probably this is only thoughtlessness, but it is a reflection on the prudence of a manager, and certainly not flattering to the feelings or intelligence of a man.
There are many ways of providing foot-hold for a horse on ice and snow. The most simple and temporary proceeding is to use frost-nails. [Fig. 65] shows various sizes and shapes of these articles.
They are not driven through the hoof like ordinary nails, but through the shoe only, which is prepared for their reception at the time of fitting. A shoe to carry frost-nails is fitted a little wider than usual at the heels and has at its extremities, or more often at its outer extremities, countersunk holes stamped and directed outwards so that the frost-nail can be safely driven through by anyone and its shank turned down over the shoe. There is a difficulty in firmly securing them, they are apt to work loose and then become bent and useless. If used on the inside heel of a shoe they constitute a danger to the opposite leg should they bend and protrude from under the shoe. As a temporary provision against a sudden frost or fall of snow they are useful—but they are only a make-shift.
The more permanent and effective system of "roughing" consists in removing the shoes and turning down a sharp chisel projection at the heels. In very bad weather a projecting edge is also laid across the toe of the shoe.
Fig. 66.—Heels of Fore and Hind Shoes, sharped.
The diagrams show the method of "sharping" a front and hind shoe at the heels only. The hind shoe, having calkins, is not much altered. The smith simply converts the square calkin into a sharp-edged one. The fore shoe having no calkins is turned down at the heels to afford enough iron to form the 'sharp.' But this shortens the shoe, and if it be repeated two or three times, as it often is, the bearing surface is spoiled, and the slightest carelessness in fitting the shoe causes a bruised heel. 'Roughing' is generally done in a hurry. A dozen horses reach the farrier's shop at one time and all desire to return to work with as little delay as possible. The work is perforce hurried through, careful fitting cannot be done, and bad-footed horses suffer accordingly. The dotted lines in [Fig. 66] show the original length of shoe, and the shortening which results from a second roughing.