yA pe BUREAU OF AMERICAN ETHNOLOGY [Bull. 177 
Ficure 87.—Stone artifacts of the Taruma Phase. a, Chopper. 0b, Ax. c-e, Rubbing 
stones. 
Quartz crystal—A single quartz crystal, broken at one end and 
waterworn on the edges, was found in excavation. Since such ob- 
jects are not natural inclusions in the soil, it presumably was brought 
to the site. Length is 4.2 cm., cross section 1.4 by 2.2 cm. One end 
comes to a natural pyramidal apex. 
Quartz pebbles.—Two small, waterworn, quartz pebbles, 2 cm. long 
by 1.2 and 1.5 cm. thick respectively, were found in excavation at 
two different sites (see Appendix, table 29). They show no evidence 
of use, but are similar to the pebble the Wai Wai shaman receives 
when he is notified by the spirits that he has been chosen. In view 
of this, and since such pebbles are not natural inclusions in the local 
soil, it seems possible that they may have had a similar supernatural 
significance to the Taruma also. 
Resin.—Two irregularly shaped hunks of hard resin, 3 by 4 by 3 cm. 
and 3 by 3 by 2 cm., are the same material used by the modern Wai Wai 
