PRODUCTS AND THEIR APPLICATIONS. 77 



9. IVORY AND BOI^E— Continued. 



/. Bone of fishes : 



Fish-bones, used by Indians and Eskimo in making imple- 

 ments. 



Shark's vertebrse, used for canes. 



Bones of sharks and skates, used (in Japan) in making 

 imitation tortoise-shell. 

 g. Waste bone and ivory : 



Use in manufacture of bone-black, ivory black, and bank- 

 note ink, (see under 29.) 



Use in manufacture of sizes and glues, (see under 24.) 



Use in manufacture or gelatine for food, (see under 4.) 



Use in manufacture of phosphorus, carbonate of ammonia, 

 (hartshorn.) and sal ammoniac, (see under 30.) 



Use in manufacture of bone-charcoal for filters, (see under 

 30.) 



Use in manufacture of paper. 



Use of shavings in case-hardening gun-barrels and other fine 

 steel. 



10. HORN. (Embracing the varieties of horn known to commerce, the 



split and pressed horns, and the various manufactured 

 articles, such as jewelry, combs, and handles. 

 a. Horn, employed as a material : 



Horn of rhinoceros, used for handles and trinkets, cups, 



boxes, whips, and canes. 

 Horns of ox, sheep, and goat, used for handles, buttons, 

 combs, powder-flasks, cups, boxes, stirrups, spoons, and 

 imitations of tortoise-shell, also " sensitive Chinese leaves," 

 and formerly for transparent plates in lanterns and horn- 

 hooks, for trumpets, and for finger-nails in lay figures. 

 Horn of bufialo, used like that of ox. 

 (Horn of Asiatic buffalo, {Bos huhalus.) ) 

 Horn of mountain-sheep and mountain-goat, used by Aleu- 

 tians, in making spoons, bowls, and numerous other imple- 

 ments. 

 h. Antlers: 



Antlers of deer, elk, and moose, (stag-horn,) used in the 

 manufacture of handles for instruments, trinkets, and but- 

 tons. 



