484 INDIAN STONE IMPLEMENTS. 
that beauty in the material had attractions. One great 
source of supply for the jasper and quartz implements, was 
in part or wholly scattered boulders, while the porphyry 
came from the ledges on Marblehead Neck, and thé small 
boulders washed up along the coast. That boulders were 
frequently used is proved from many half formed imple- 
ments which show some of the rounded surface yet remain- 
ing. That the porphyry ledges on Marblehead Neck were 
an extensive source of supply, is proved by the cart loads 
of chippings of stone around and in the vicinity of them. 
That these pieces and fragments were artificially broken is 
proved by the many conchoidal surfaces, the fresh appear- 
ance of the surfaces, and the rough design which some of 
these present. 
That the practice of the aborigines was to cut out but 
rough designs at the quarry, and work out these designs 
at their camping grounds, is proved by the large size of the 
fragments chipped off near these ledges, and the scarcity of 
even rough designs; while in the town of Marblehead, about 
a mile from the porphyry ledges on the Neck, the chippings 
are smaller, and the designs are nearer to completion. In 
the township of Marblehead I have found a multitude of 
implements, over a thousand in number, that were broken 
in every stage of the process of manufacture, while I have 
rarely found in the Connecticut valley fragments of un- 
finished implements; such as I have found are usually those 
of finished implements. The chippings of stone on Marble- 
head Neck, as I have shown, average quite large; those in 
the township considerably smaller, and the chippings found 
in the Connecticut valley are yet smaller. 
The hornstones so commonly used for arrowheads and 
other implements there I have never found in Marblehead, 
and I have never found among implements of the Connecti- 
cut valley any manufactured from the porphyry of Marble- 
head. In one of the Reports of the Smithsonian Institution 
is an account of the finding of a mass of half finished imple- 
