318 BUREAU OF AMERICAN ETHNOLOGY [Bull. 184 
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Figure 53.—Flint society altar. 
travel as they enter the room to invest the images of themselves on 
the altar, leads from the meal painting to the door (figs. 45, 53). 
WITCATSI 
One of my Sia informants, a member of one of the medicine societies, 
called quartz witcatsi. He gave mea quartz pebble (fig. 54) which he 
said was a very important item of paraphernalia in the curing cere- 
monies. He did not specify its use (he was reluctant to talk about 
witches), but I am sure it is the same thing as the quartz crystal, or 
pebble, used at Acoma (White, 1932 a, p. 110), where it is called 
ma-caiyoyo and used to obtain supernatural vision to locate witches; 
at San Felipe (White, 1932 b, pp. 46-47) by medicinemen in curing; 
and at Cochiti (Dumarest, 1919, p. 156), where medicinemen used 
“a round, white, transparent stone,” in order to see witches. The 
specimen obtained by me at Sia is the first actual identification of this 
article as far as I know. It is 4 em. long, 3 cm. wide, and 2.5 cm. 
thick; it weighs 52.5 gm. It has been deposited in the Museum of 
Anthropology, University of Michigan, catalog No. 25140. 
Bits of quartz are placed in the cob of an iariko, as we have seen. 
