486 



British Dogs. 



behind the fore legs ; a strap is from this attached to the upright in which 

 the spindle works, and another to a hook outside the wheel, so that the 

 dog is kept in position. Soft, well-kneaded clay, kept well moistened, 

 is sometimes used instead of tan for the bed on which the dog has to 

 work. 



The Exerciser itself is a round platform of wood, about 6ft. in. 

 diameter, moving on an axle or pivot. In the diagram given, A is the 

 floor, firmly fastened to which is a circular block of hard wood (B), 18in. in 



diameter, and 4in. thick, with a smooth upper surface. Through the 

 centre runs the axle or pivot (C), which is a bar of iron 4ft. long and an 

 inch and a half in diameter, with a flange perforated with four holes, and 

 countersunk to secure it finally to the floor with screws. D is a second 

 piece of hard wood, 15in. in diameter, and 4in. in thickness, securely 

 fastened to the underside of the platform (E), the surf ace of which next to 

 B is also to be made very smooth. The platform should be made of lin. 

 deal, with a hole in the centre to admit the pivot, and have a rim of 

 wood (F) round, about 3in., to keep the spent tan-bark from flying off as 

 the wheel revolves, that being the best material to make the roadway of, 

 damping it occasionally to keep it from getting dry and dusty. It is 



