1920.] 



NATURAL SCIENCES OF PHILADELPHIA 



211 



the periphery of the object." Unfortunately, it is impossilile to be 

 certain from the illustration, whether the piece is truly one of the 

 group here described. 



Actual experiment with the notched hones convinced the writer 

 that the terminal groove had served for the dressing of thong or 

 sinew, the tool being held comfortably in the closed hand, and the 

 thong drawn through the hand and over the end of the stone, cutting 

 more or less deeply into its end and the adjoining faces. This 

 method of handling tends to slant the notch to the left — for right- 

 handed workers. One specimen (Plate VII, fig. 7; text fig. 1) pre- 

 sents, in addition to its notched end, a series of five finer striae 

 across one edge of the hone, apparently cut in by a slender sinew 

 thread. 





Fig 1. — Sinew scored edge of 

 PI. VII. fi?. 7. 



Fig 2.— Basal view of PI. VII, 

 fig. 8. 



In addition to the hones already described, there are, in the col- 

 lection certain irregular pieces which call for special mention. One 

 little hone (Plate VII, fig. 8; text fig. 2), w^hich approaches in form 

 the Antilhan Zeiyii or "cocked-hat stone," has been drilled near one 

 edge, probably for the attachment of a cord, which passed in a 

 shallow groove over the edge of the artifact. The working down 

 of the face through use has almost obliterated the groove, and 

 possibly, by wear on the cord, accounts for the loss of the tool. 



