162 PICTURE-WRITING OF THE AMERICAN INDIANS. 
The same author, page 20, describes the petroglyph copied in Fig. 
130 as follows: 
Mr. Arthur John Giles in the year 1873 discovered, at the junction or Sullivan’s 
creek with the Finke river, carvings on rocks. The sketch represents a smooth- 
faced rock, portion of a rock cliff about 45 feet high, composed of hard metamorphic 
slate. The lower portion of the sculptured face has been worn and broken away, 
forming a sort of cave. From the level of the creek to the lower edge of the sculp- 
tured rock is about 15 feet. The perpendicular lines are cut out, forming semi- 
cirenlar grooves about 1} inches in diameter, cut in to a depth of nearly half an inch; 
all remaining figures are also carved into the solid rock to a depth of one-fourth of 
an inch. 
Fic. 130.—Petroglyph on Finke river, Australia. 
The same author, page 14, gives the following description of some 
pictures discovered between 1831 and i840 by Capt. Stokes on De- 
puch island, one of the Forestier group in Detapier archipelago, on 
the western coast of Australia: 
Depuch island would seem to be their favorite resort, and we found several of . 
their huts stillstanding. The natives are doubtless attracted to the place partly by 
the reservoirs of water they find among the rocks after rain; partly that they may 
enjoy the pleasure of delineating the various objects that attract their attention on 
the smooth surface of the rocks. This they do by removing the hard red outer coat- 
ing and baring to view the natura, co.or of the greenstone, according to the outline 
