IlSr SOUTH-EASTERN PEN^NSYLVANIA. 



359 



Fig. 13, represents a flake of hard reddish-brown indurite, with a ])ale broAvn, 

 decayed exterior, and harder resisting points projecting on tlie inferior flat surface : 

 upper surface Avith the two rectilinear margins beveled, apparently by rubbing, but 

 the lines marking the limits of the beveling are obsolete from decay : base broken. 

 An interesting specimen. 



Figures 15 and 16, represent quartzite points judged to be of great age from the 

 dull surface and weather-beaten aspect in so hard a mineral. 



Most of the specimens here figured indicate that the point was the first part 

 finished ; and in the quartz example Fig. 21, and siUceous shale, Fig. 22, an nnre- 

 moved mass of the material remains at the base. Figures 21 and 23 indicate that 

 the basal notches were the last parts made. 



The form of Fig. 25 is unusual, but it occurs in Pennsylvania. Dr. Ran (Archfeol. 

 Coll. 1870, Fig. 47), figures a specimen from Georgia. 



ARROW-HEADS. PL. 6. 



Figures 1, 2, 7, 8, 16, 18, 20, 21, white quartz, all seemingly from the black mold 

 except the leaf-shaped. Fig. 16, with which compare Jones, PI. 9, Fig. 3; Abbott, 

 Fig. 101 ; Ran, Fig. 4 



Fig. 2, has a good outline, but each surface has a rough medial projection indi- 

 cating an unfinished condition : the surface has lost most of the fractural gloss. 



Figs. 3, 17, chert or black flint : glossy and neatly finished. Compare Abbott, 

 1875-6, Fig. 83 ; Jones, PI. 9, Fig. 26 ; Ran, Fig. 6. 



Fig. 4, chert: marked "Chickis? recess, March 26, 1877." I have several 'New 

 Jersey specimens of this form from Mr. Wm. Klingbcil. Rare in Pennsj lvania ; less 

 rare in Georgia, whence I have examples from my friend Dr. J, L, LeConte, of 

 various sizes (some more slender), with the base more deeply emarginate than in Fig. 4, 



Figs. 5 and 6, chipped from hard gray quartzose material : fracture glossy. See 

 Abbott, Fig. 82. 



Fig. 9, pale bluish-gray chalcedony. Arrow-heads of this material occur rarely 

 in the vicinal fields, also in the next County of Chester, and in East Tennessee. 



Fig. 10, dark-red chipped jasper with a fresh surface : a handsome specimen 

 found in the earlier period of the excavation — probably about ten inches from the 

 surface. 



Fig. 11, edges serrulate; material cherty, surface dull. 



Figs. 12 and 23, have the lozenge shape, which is rather rare in the vicinity. 

 Compare Evans, Stone Implements, Figs. 296-7. 



Fig. 14, bluish, resembling a cherty, shaly limestone : scarcely hard enough to 

 A. p. s. — VOL. XV. 4c. 



