ANIMAL EESOUECES AND FISHERIES OF UNITED STATES. 173 



VI. PREPARATION OF HARD TISSUES. 



17. Ivory cuTTma and carving. 



ITIaniifacture of handles, trinkets, MEMard-balfls, &c. 



Turning and sawing. 



Polishing. 



Bleaching. 



Manufacture of org^an and piano keys. 



Sawing. 

 Strip-sawing. 

 Polishing. 

 Bleaching, &c. 



Other processes. 



18. Preparation of horn and hoof.^ 

 l$teaniin§^.^ 

 Pressing^.^ 



19. Preparation of whalebone.^ 



Cutting and other processes.' 



Manufacture of i;vhip-Bnakers' stock and irhips. 

 Manufacture of umbrella-snakers' hone. 

 Manufacture of rihhon-i«s^eavers' hone. 

 Manufacture of hat and bonnet unakers^ hone. 

 Manufacture of suspender-makers' hone. 

 Manufacture of stock-makers' hone. 

 Manufacture of dress and stay makers' hone. 

 Manufacture of hilliard-tahle cushions. 

 Manufacture of surgical instrusnents. 

 Manufacture of i^halehone hrushes. 

 Manufacture of rosettes, TroTen work, and trinkets. 



'These processes are illustrated in part by the specimens, showing the horn, whale- 

 bone, and tortoise-shell, in various stages of preparation, exhibited in Section D. 



