PRODUCTS AND THEIR APPLICATIONS. U7 
9. LVORY AND BONE—Continued. 
J. Bone of fishes: 
Fish-bones, used by Indians and Eskimo in making imple- 
ments. : 
Shark’s vertebra, 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 ammoniae, (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 buffalo, used like that of ox. 
(Horn of Asiatic buffalo, (Bos bubalus.) ) 
Horn of mountain-sheep and mountain-goat, used by Aleu- 
tians, in making spoons, bowls, and numerous other imple- 
ments. 
b. Antlers: 
Antlers of deer, elk, and moose, (stag-horn,) used in the 
manufacture of handles for instruments, trinkets, and but- 
tons. 
