METHODS OF PEEPARATION. 51 



15. MANUFACTUEE OF QUILL ARTICLES— Continued. 



a. Manufacture of quills for pens : 



Dyeing. 



Shaping. 

 1). Manufacture of tooth-picks. 



c. Manufacture of floats and other articles. 



d. Manufacture of quill brush-bristles. 



16. HAIR AND WOOL WORK. 



IV. PREPARATION OF HARD TISSUES. 



17. IVORY CUTTING AND CARVING. 



«. Manufacture of handles, trinkets, billiard-balls, &c. : 



Turning and sawing. 



Polishing. 



Bleaching. 

 T). Manufacture of organ and piano keys : 

 . Sawing. 



Strii)-sawing. 



Polishing. 



Bleaching, «Scc. 

 c. Other processes. 



18. PREPARATION OF HORN AND HOOF. 



a. Steaming. 

 6. Pressing. 



19. PREPARATION OF WHALEBONE. 



a. Cutting and other processes. 



h. Manufacture of whip-makers' stock and whips. 



c. Manufacture of umbrella-maker's bone. 



d. Manufacture of ribbon-weaver's bone. 



e. Manufacture of hat and bonnet maker's bone. 

 /. Manufacture of suspender-maker's bone. 



g. Manufacture of stock-maker's bone. 



h. Manufacture of dress and stay maker's bone. 



i. Manufacture of billiard-table cushions. 

 Tc. Manufacture of surgical instruments. 



I. Manufacture of whalebone-brushes. 

 m. Manufacture of rosettes, woven-work, and trinkets. 

 n. Other whalebone manufactures. 



20. PREPARATION OF TORTOISE-SHELL. 



