METHODS OF PREPARATION. 51 



15. MANUFACTURE OF QUILL ARTICLES— Continued; . . 

 a. Manufacture of quills for pens : < 



Dyeing. , * 



Shaping. 

 h. 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. 



a. Manufacture of handles, trinkets, bi.lliard-balls, &q. i 

 Turning and sawing. 

 Polishing. 

 Bleaching, ■ 



b. Manufacture of organ and piano keys : 

 Sawing. 



_l Strip-sawing. " 



Polishing. 

 Bleaching, &c. 



c. Other processes. ' 



18. PREPARATION OF HORN AND HOOF. 



a. Steaming. 



b. Pressing. 



19. PREPARATION OF WHALEBONE. 



a. Cutting and other processes. 



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



c. Manufacture of umbrella-maker's bone. 



d. IManufacture of ribbon- weaver's bone. 

 €. 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. 

 1c. 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. 



