184 GOODYEAR ON GUM- ELASTIC. 



ACCORDIONS. 



India rubber whalebone and ivory are unquestionably superior 

 substances for those parts of accordions which have heretofore 

 been made of wood, because of the facility with which they are 

 moulded, and their being not liable to warp. The light gum- 

 elastic fabrics, tissue and vellum, are also suitable for the bellows 

 on account of their pliability, durability, and air-proof qualities. 



BAG-PIPES. 



The pipes of the bag-pipe may be made of caoutchouc ivory, 

 the bags of plated fabrics or vegetable leather. 



MUSIC BOXES. 



Caoutchouc ivory is well adapted to the manufacture of the 

 cases of music boxes, because of its elasticity, its durable prop- 

 erties, and the facility with which it is moulded and ornamented. 



BASS VIOLS AND VIOLINS. 



Some experiments have been made with these instruments, 

 from which ultimate success in the manufacture of them from 

 caoutchouc may be reasonably anticipated. 



DRUMS. 



India rubber whalebone board and whalebone are suitable 

 materials for drums. The flexible fabrics, plated canvas, or 

 vellum, are suitable for drum heads, because they are not in- 

 jured by dampness. The elastic knit fabrics are also well 

 adapted for the heads and covering the sticks of the bass drum. 





