902 



REPORT OF NATIONAL MUSEUM, 1897. 



Fig. 107. 



LEAK -SHAPED IMPLE- 

 MENT OF DARK GRAY 

 FLINT, WITH CONVEX 

 BASE. 



San ^Miguel Island, 



California. 



Division I, Class I?. 



IJxgxJ. 



Cat. No. 296S5, U.S.N. M. 



Fig'. 112 is a be:mtiftil specimen of trauslucoiit chalcedony, and is 

 wrought to a true and even edge by almost iutiiiitesimal tiakiug. The 

 point and edges one-third way up are smoothed as if 

 by use, not polished, but as though the sharpness of 

 the edge had been worn off. It is a 

 fine specimen. 



Fig. 113 is of pori)hyritic felsite, 

 which forms so large a portion of the 

 material for i)rehistoric implements 

 from eastern Massachusetts. Fig. 

 114 is of reddish quartzite, fine- 

 grained and hard. It is from Kliode 

 Island, and has convex edges and a 

 straight base. Fig. 115 was found at 

 Chattanooga in Tennessee by Messrs. 

 Eead and Dayton, but is of the white 

 flint which belongs to Illinois and 

 Missouri, and is a form common to 

 those Western States. It is widest near the base, 

 and from the jilace of its greatest expansion to the 

 point the edges are straight, and 

 not convex as usual. Fig. 110, from 

 Knox County, Illinois, is of the pale-gray flint with 

 the lustrous chalcedonic appearance common to that 

 State. It is deeply weathered, espe- 

 cially at the two ends, where it is 

 thin. Fig. 117 is elliptical and sym- 

 metrical. The edges are smooth and 

 sharp, with fine chipping of long and 

 regular shell-like flakes reaching 

 from the edge to the center ridge. 

 It is a specimen of the most dif- 

 ficult flint chipping in the Museum. 

 There are 48 flakes shown on the 

 two sides. Tliey are one-half to live- 



Fig. 108. 



LEAF-SHAPED IMPLE- 

 MENT OF .TASPERY 

 GRAYISH FLINT, WITH 

 CONVEX BASE. 



Division I, Class B. 



3 X /g X /g. 



Cat. No. 20616, U.S.N. M. 



Fig. 109. 



LEAF-SHAPED IMPLE- 

 MENT OF OBSIDIAN, 

 WITH CONVEX BASE. 



San Miguel Island, 



California. 



Division I, Class B. 



3J X f's X J. 



Cit. No. '26426, U.S.N.M. 



eighths of an inch in width and li 



tol^ inches in length, and are scarcely 

 thicker than parchment. Such fine 

 work is beyond the skill of any one 

 known to historic times. This speci- 

 men was found by Mr. John G. Henderson, of Win- 

 chester, Illinois, in a burial mound near Naples, Illi- 

 nois, associated with numerous curious objects — copper 

 hatchets, elaborate i)ipes, Pyrula shells, etc. — and is 

 described by him.' Fig. 118 is of yellow jasper, of oval form, with con 



Fig. 110. 



LEAF-SHAPED IMPLE- 

 MENT OF LUSTROUS 

 CHALCEDONIC FLINT 

 ORSILICIFIED WOOD, 

 WITH CONVEX BASK. 



San Miguel Island, 



California. 

 Division I, Class B. 



3ix|x/5. 

 Cat. No. 15734, U.S.N.M. 



Smithsonian Report, 1882, p. 696, fig. 11. 



