302 BUREAU OF AMERICAN ETHNOLOGY [Bull. 177 
Ficure 119.—Stone axes from habitation sites of the Rupununi Phase. 
specimen is 5.5.cm. (plus about 1 cm. broken off), 4.8 cm. wide and 
2.0 cm.:in maximum thickness. The largest is 9.5 cm. long, 8.5 em. 
wide, and 3.3 cm. in maximum thickness. 
A single ax from R-40 is a pebble of andesite shaped by percussion, 
leaving flaked areas along the edges. It is oval rather than rectangu- 
loid and Jacks notches. The bit is curved toward one face in the 
manner of an adz, and is narrower than the maximum width of the 
tool at the center. The butt end is broken. The length is 9.5 em., 
maximum width 6.0 cm., width at bit 3.5 cm., thickness 1.8 cm. 
Bowls.—Rim fragments from two stone bowls of syenite have 
slightly outsloping walls and a flat or rounded lip. One fragment 
is well shaped by abrasion on both interior and exterior. It has a 
mouth diameter of 34 cm. and an interior depth of 6cm. Wall thick- 
ness is 1.7 to 2.0 cm. at the rim, increasing to 8 cm. at the bottom. 
The other appears to have been percussion shaped and polished only 
