202 THE STONE AGE IN NEW JERSEY. 
Of this pattern there is a remarkable uniformity in size, and the 
vast majority of specimens found are of jasper. A second form 
with a notched base is represented 
by Figures 32 and 33. Like the 
above, this form does not vary much 
in size, and is usually of jasper, but 
by no means invariably of that min- 
eral. Slate was considerably used, 
but accuracy and general elegance of 
material. We think that there cat 
be no question as to these being used ; 
exclusively as arrowheads, but the — 
same shape of greater dimensions 
A would have been efficacious as 
| poonpoints. The specimen (I 
33), it will be noticed, has se 
edges. This is a not incommon 
ture of many of the smaller speck 
mens, but generally these 
A ca 
Natural size, 
has explained this, 
comparison with the same type with smooth edges, W 
they are invariably much thinner. To secure the 
serrated edge, it was probably necessary to make 
them so; and of course these thin specimens were 
more frequently broken in the manufacture and 
more liable to injury in the daily wear and tear 
to which they were subjected. A third form of 
notched arrowheads with a projecting base is 
seen in that figured in the illustration (Fig. 34). 
_ In general appearance it is much like the preced- 
ing, but the object of the notch in the centre of 
the base below does not appear. The specimen 
of a black, slaty stone, thin, with the sides 
kam ly serrated. We have met with no sim- 
ilar e in any work on the subject of stone Natural 
weapons.. In New Jersey, at least about Trenton, they” 
— Sea ee a dozen or more examples having eh ae 
