A STUDY OF rREHISTORIC ANTHROPOLOGY. 



663 



They are chiefly carved from stone, but not unfrequently were molded 

 in clay. 



Messrs. Squier and Davis, in their explorations of mounds in Ohio, 

 discovered many curious and Interesting types. They were supposed 

 at one time to have been made of hard stone, a kind of porphyry, but 

 later examinations and scientific analyses have shown them to be of 

 softer materials, composed of slaty and calcareous minerals. 



Kos. 177 to 184 represent types of those found by Squier and Davis. 



188 



Piff. 36. 



PlPKS. 



No. 186, argillaceous stone, from Pennsylvania; 187 represents a loon, 

 and is of serpentine, from West Virginia; 188, from New York; 189, 



