460 



SCIENTIFIC RECREATIONS. 



certain amount of practice is necessary to obtain complete command of the 

 machine, but when mastered the swimmer can proceed, without much exertion, 

 at a rapid rate. The apparatus itself is not difficult to make, and persons 

 who have tried it speak highly of its convenience and of the facilities it may 



afford. Captain Boyron's swimming-dress is another useful invention, but 

 the means of mechanical propulsion are wanting, while in this new apparatus 

 the swimmer can drive himself through the sea with ease and expedition, and 

 even a non-swimmer may thereby save life without danger to himself, or the 

 person he wishes to rescue. 



