252 GOODYEAR ON GUM-ELASTIC. 



CAMEOS. 



Cameos and broaches of different kinds are manufactured of 

 caoutchouc ivory, which closely resemble those which are made 

 of other materials. This substance has a decided advantage for 

 these uses, such as lightness, strength, combination of colors and 

 facility of manufacture ; but before deciding that there is any 

 improvement to result from this application, it may be necessary 

 to know whether a material can be adopted for ornaments 

 which is not "dear bought and far fetched." 



UMBRELLA AND CANE HEADS. 



The heads of umbrellas, canes, whips, and other articles are 

 manufactured of caoutchouc ivory and whalebone with economy 

 and advantage. They are moulded with the same facility as 

 pressed horn, and are equally, if not more durable, than any 

 other material from which such articles have heretofore been 

 made. See plate , fig. 



PLATED ORNAMENTS. 



Some ornamental, as well as numerous useful articles, are 

 made according to an invention that is briefly described in Vol. 

 I., page 111, of this work. It consists in plating or covering the 

 articles with silver or gold foil, such as canes, walking sticks, 

 whip heads, &c. Other articles, such as drinking cups, pitchers, 

 trays, servers, &;c., are lined in the same way, upon the inside. 

 In both cases the work is done by placing the foil upon the 

 article where it is fastened by the pressure of the mould, when 

 the article is vulcanized. 



