The horse's mouth, showing the age by the teeth. Containing a full description of the periods when the teeth are cut; the appearances they present, the tricks to which they are exposed, the eccentricities to which they are liable, and the diseases to which they are subject / By Edward Mayhew.

Mayhew, Edward, 1813?-1868.

Date:: [1849]

Credit: The horse's mouth, showing the age by the teeth. Containing a full description of the periods when the teeth are cut; the appearances they present, the tricks to which they are exposed, the eccentricities to which they are liable, and the diseases to which they are subject / By Edward Mayhew. Source: Wellcome Collection.

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$and the blunt sides afforded rather a show of pro¬ tection than any positive security. Mr. Gowing has increased the breadth needed to make the chisel useful, and he has also added two falling sides, that, dropping over the lateral surfaces of the molars, guide the instrument, which works as in a groove. More steadiness is thus obtained, and the operator, consequently, can act with decision. The new chisel, however, is not intended to be used alone ; if singly employed, it might do some damage, and fracture almost as readily be induced as formerly. To prevent such an accident other aids were imperative, and perceiving this, the instrument, which the following wood-cut represents, was invented by Mr. Gowing. It is carved, so as to be suited to the shape of the horse’s mouth, and at one end has a handle, while at the other is a cutting edge, between two circular guards, which prevent any injury being done to the softer parts. When a shelving projection of tooth is to be removed, this instrument is introduced into the$