HOLLOW WARE. 205 



JAPANNED GOODS. 



The high lustre which has recently been given to the sur- 

 face of vulcanized fabrics, renders the use of these fabrics of 

 less importance for japanners, than was at first anticipated, 

 and also obviates the necessity of their being finished by japan- 

 ning. Cord ware and wicker-work may yet be japanned to ad- 

 vantage, for although the vulcanized fabrics are made with a high 

 finish, equal in appearance to the oil japan, yet the finish has 

 not the brittle hardness or lustre of the oil, and is more easily 

 scratched than the oil japan. 



HOLLOW WARE. 



These goods are made of elastic compound, and consist of 

 balls, toys, breast-pumps, bottles, and a variety of other articles, 

 described hereafter among the applications. 



The goods are vulcanized in moulds, and by the expansion of 

 the air within the articles while heating, they are caused to fill 

 the moulds, which may be made of any shape, and of a figured 

 surface if required. 



The moulds are commonly made either of block-tin or cast- 

 iron. The number and variety of this class of articles has been 

 greatly increased by the moulding and heating of gum-elastic 

 sponge, which is found to answer for many uses better than ar- 

 ticles which are quite hollow. From present appearances we 

 may venture the opinion, that the articles of gum-elastic hollow 

 ware will become as numerous as those made of iron. 



