184 PERFORATED STONES. 



straight; in a few, it is slightly tapering. Three of the lot show the con- 

 centric striae on the sides of the hole made by the boring instrument; in 

 all the others, the sides of the hole have been more or less worn, and, in 

 many, longitudinal striations can be seen. One has evidently had hard 

 usage, and probably about half of it has been lost by a blow, which caused 

 a fracture diagonally across the stone. This stone is 4 inches in diameter, 

 and the hole, slightly oval, with straight sides, is about 1 inch in width. 

 The specimen was obtained on the island of San Clemente by Mr. Schu- 

 macher (P. M. 13524). 



A finely-polished example (P. M. 13597), circular in outline, but of 

 unequal thickness, is made of serpentine. It is 3^ inches in diameter and 

 l£ in its greatest thickness. The hole, made by boring from one side, is 1 

 inch across on one face and tapers to § of an inch at the opposite end. 

 This was obtained by Mr. Schumacher from a grave at the same place 

 where Dr. Yarrow excavated on the mainland near Santa Barbara, and is 

 of particular interest from the fact that the whole surface of the stone is 

 polished. 



Two others, of the same material and size as the last described, are 

 from the island of Santa Catalina; one (P. M. 13362) is from the shell- 

 heap, and the other (P. M. 13421) is from Pots Valley. They differ from 

 the Santa Barbara example in having larger and perfectly straight holes 1 

 inch in diameter, and in being polished over half of the surface only. 



Two smaller specimens of steatite (P. M. 13359, 14800), which seem 

 to have been exposed to heat, are from the shellheap on the island of Santa 

 Catalina. They are symmetrical and well made, with large straight holes, 

 which have been much worn and are now over 1 inch in diameter. A still 

 smaller specimen (P. M. 13359), also from the shellheap, and made of 

 steatite, is 2J inches in diameter and 1| in thickness. The hole was prob- 

 ably bored, and is slightly tapering- from one end to the other. 



One of the same diameter as the last, but not quite so thick, and with 

 a hole not quite as large, is also of steatite, and was obtained by Mr. Schu- 

 macher on the island of San Clemente (P. M. 13523). 



A smaller specimen made of steatite was obtained by Mr. Schumacher, 



