[103] FISHERIES OF THE UNITED STATES. 1133 



Scales of sturgeon (Acipenser sp.). 



Dried and prepared for bric-a-brac, buttons, &c. New York. Albany 

 Beef Packing Company. 372 Greenwich street. 



22. Pearls and shells. 



Pearls and nacre. 



Embracing the pearl-yielding shells, with the pearls and the mother- 

 of-pearl in the rough state, with the manufactured buttons, 

 handles, and jewelry, pearl-powder, inlaid work, and papier- 

 mache, ornamented with mother-of-pearl; ear-shells (ffaliotidcv) 

 used in manufacture of buttons, handles, inlaid work, and pearl- 

 powder; pearl oysters (Aviadidce), with pearls and nacre; 

 river mussels (Unionidce), with pearls and nacre, crude and 

 polished. 



(For list of specimens, see Section D, "Catalogue of the Economic 



Mollusca, &c") 



Shells. 



Cameo shell and shells of Cyprcca, Botella, Oliva, Turritella. &c, 

 mounted as buttons and jewelry, composition shell work for 

 box covers and frames, made by gluing shells in mosaic; cut- 

 tle-fish bone from Sepia officinalis, used as a pounce, as a denti- 

 frice, as polishing powders, for taking fine impressions in coun- 

 terfeiting, and as food for birds ; concretions from the stomach 

 of Astacus, known as " crab's-eyes " and "crab-stones," and 

 used as antacids; shell of king-crab (Limulus polypliemus), 

 used as a boat-bailer. 



(For list of specimens, see Section D, " Catalogue of Economic Mol- 

 lusca," and Section B, Catalogue of Economic Crustaceans, &c.) 



23. Fish glue and isinglass. 



air-bladders, or sounds of fish, and fish tongues, used in the 

 manufacture of ribbon isinglass and glue. 



Cod sound. 



Air-bladders of cod {Gadus morrhua) dried. Used in the manufact- 

 ure of ribbon isinglass. George's Bank. Cape Ann Isinglass 

 and Glue Company. Bockport, Mass. 12,126. 



Cod sounds. 



Air-bladders of cod ( Gadus morrhua), used for manufacture of fibrous 

 isinglass. Liquid isinglass can also be made from these sounds. 

 Value, 17 cents per pound, dry. Gloucester, Mass. Glouces- 

 ter Isinglass and Glue Company. 



