208 IMPLEMENTS IN THE RIVER DRIFT AT TRENTON, N. J. 
‘‘ drift implement,” because of this very chipping of its cutting 
edge. It is inconceivable to us that any amount of water action, 
or rough and tumble existence with moving gravel, or even any 
action of a glacial nature, could produce this chipping along the 
edge, and conveniently add a handle to an accidentally produced 
cutting implement. 
Figure 37 represents an implement of opaque yellowish quartz 
that bears more resemblance to the European forms of drift imple- 
Fig. 38.. ments than does the 
preceding. In Reliquie 
Aquitanice,* there is 
figured a ‘‘ large broad 
flake, worked into a lan- 
ceolate form by careful 
chipping along the edges 
of the outer face,” which 
specimen is quite similar 
to the one we have fig- 
ured. The specimen, 
figure 37, has evidently 
been broken off from a 
boulder, and subse- 
quently chipped along 
its edges. It is irregu- 
larly lanceolate in form, 
five an one-quarter 
inches in length, and 
three and one-half inch- 
es in greatest width. 
Although both faces are 
now equally water and weather-worn, it is shown by the speci- 
men’s concavo-convex shape, that the latter is the outer or natural 
surface of the stone. It is slightly darker in color, and more irreg- 
ular, as though the stone had been somewhat chipped before the 
flake itself was detached. 
This chipped flake was found in the same gravelly bluff, as the 
preceding, but at some distance from it, being the point previ- 
ously referred to as immediately facing the river, as shown in the 
-map by the word “ bluff.” It, too, was found by the writer in situ 
a ET *Rel. Acq. A. pl. mI, fig. 1. 
