984 The American Naturalist. [December, 
quired by the arts” (p. 18). The four specimens at the bottom 
are leaf-shaped blades of quartzite found on the surface at 
Bennings, D. C., and might or might not have been the pro- 
duct of the quarry at Piney Branch. They form part of the 
330 in Table II from that locality. Those in the middle are also 
_ leaf-shaped, found on the surface in the District or adjoining 
it in Maryland or Virginia, but are of quartz, argillite, shale, 
porphyritic felsite, all of them other material than quartzite, 
and so they could not have been the product of the quarry at 
Piney Branch. They form part of 541 in Table II and of the 
1948 in Table V. 
TABLE V. RECAPITULATION ACCORDING TO FORM. 
No. of No. of |Implts. of quartzite, possibly 
Implts. Implts. from Piney Branch. 
ie 
Caches, leaf-sha; 865 865 a 
Caches, not Seeteuened, 40 12 
II, 
Leaf-shaped blades. Surface, not cached,| 1,948 883 
Ill. 
Arrow and spear heads, etc., flaked im- 
plements which, hg ‘their form, 
7 — been made from leaf. 
shaped blades 2,534 694 
IV. 1 1,589—Total whlch (ac- 
cordin ng to Mr. Holmes’ 
Flaked implements, knife blades, scrap- theory) might have been 
ers, arrow an ar points, perfor- made in or come m 
ators which were judged, from their the quarry at Piney 
form and material, were not made Branch, out of a total 
from leaf-shaped bl fades of quartzite, 21,465 26,812. 
| Total, all kinds, 26,812 
. This sa eas eyi some Pisca! becau ar distant from Piney Branch and be- 
cise We have her ys inbeeuite trot that localttr. This cache waste ported by Mr. 
Reynolds, whe he AN uta eien implement, given him by the finder, as a specime’ 
In considering these tables and their bearing on es Piney 
Branch Quarry, we are to keep continually in mind that the 
sole and only material in that quarry was quartzite. There 
was no quartz pophyritic felsite, rhyolite, shale, ferruginous 
sandstone, flint, jasper or chert found in any of its deposits, 
and all implements made from any of these materials are to be 
excluded from consideration because impossible to have come 
from that quarry. Keeping this in view, these tables show 
