SHARPENED SHOES FOR SNOW. 451 



within the shoe, is by stuffing the feet with a preparation of 

 gutta-percha. This material is prepared by the manufactur- 

 ers, and it has only to be slightly warmed before applying. 

 The writer has tried smearing the sole with glycerine and 

 many other so-called preventatives, but the result has not 

 been satisfactory. 



