542 



THE POPULAR SCIENCE MONTHLY 



A Portion of the Red Abaloxe Shell with Four Blister-pearls 



and Two Free Pearls. 



of good green shells, there is a growing tendency to use the centers of 

 the red shells for jewelry. 



When the shells are cut into ornaments, as many as fifteen pieces, 

 including one scimitar-shaped paper-knife made from the lip, or rim, 

 may be produced from one shell of about twenty-two inches in circum- 

 ference. At an average retail price of fifty cents for each of these 

 pieces the products of the shell would realize seven dollars and fifty 

 -cents. 



The blister-pearls are more or less extended elevations of the inner, 



Shell of Red Abalone Opened to show a Razor-clam Shell 

 Forming a Blister-pearl Nucleus. 



