306 ANIMAL RESOURCES AND FISHERIES OF UNITED STATES. 



15. PEARL. 



Pearls and nacre (embracing the pearl-yielding shells, with the 

 pearls and the mother-o'-pearl in the rough state, with the manufac- 

 tured buttons, handles, and jewelry, pearl-powder, inlaid work, and 

 papier-mache, ornamented with mother-o'-pearl. 



Top-shells (Turbinidai), and their application to manufacture of 



shell-flowers. 1 

 Tower-shells (Trochidce). 1 

 Ear-shells (Haliotidce), used in manufacture of buttons, handles, 



inlaid work, and pearl powder. 1 

 Other gasetropods supplying nacre. 1 

 Pearl-oysters (Amculidce), with pearls and nacre. 1 

 JRiver-mussels ( Tfnionidce), with pearls and nacre. 1 

 \Mussels, oysters, and other conchifers supplying pearls and nacre. 1 

 ;Shells of nautilus and argonaut, prepared to exhibit their nacre. 1 

 Ornamental. pearl- work, imitating sprays of flowers, &C. 1 , 

 Imitation pearls. 1 



16. SHELL. 

 Cameo shell. 1 



Shell of conch (Strombus gigas), and carvings. 1 

 Shell of helmet (Cassis rufa, C. tuberosa, and C. madagascariensis)^ 

 with carvings. 1 



Shells used Tor implements, 



Shells of Strombus, Triton, Dolium, Fusus, Murex, and Buccinum, 

 used for fog-horns, lamps, vases, and ornamental borders in flower- 

 gardens. 1 



Shells of Busycon, Sycotypus, Mactra, &c., used by Indians in manu- 

 facture of implements, with specimens of implements. 1 



Shells of Mautra, used for ladles, scoops, and spoons by fishermen. 1 



Shells of Tridacua, used for vases, fountains, and in the manufac- 

 ture of handles and carvings. 1 



Shells of Pectcn, Hal'iotis, Dentalium, Mercenaria, &c., used by In- 

 dians for trimmings and ornaments. 1 



Shells of Pecten-, used in making pin-cushions and purses. 1 



Shells of Mercenaria violacea, Purpura lapillus, and Buccinum unda- 

 turn, used by Indians of eastern coast in manufacture of money, 

 with specimens of wampum (with the modern wampum or shell- 

 beads, manufactured for the Indian trade), and of the hyqua or 

 Dentalium shells, employed in a similar manner by the Indians of 

 the Pacific coast. 1 



Specimens of the cowry (Cypraea meneta), "live cowry" and dead 

 cowry, used in African trade and for trimmings. 1 



1 See iu Part II of the present catalogue. 



