EXPLANATION OF PLATE 34, 



Stemmed Arrowpoints, Spearheads, or Knives. 



Class B. 

 Fi<r. 1. Chert. 



(Cat. No. 68U2, r.S.N.M. Ohio. J. H. Devereux.) 



Fig. 2. Rough Iroxstoxe. 



(Cat. Xo. 7007, U.S.X.M. Deunysville, Washington (bounty, Maine. Benjamin Lincoln.) 

 Fig. 3. Argillite. 



(Crtt.No. 18004, U.S.N.M. Connecticut. J.H.Clark.) 



Fig. 4. Dark GRAY Flint. 



(Cat. No. 19356, F.S.N.il. Mineral Si)riug8, A rkan-sas. Dr. E. W. McCreary.) 



Fig. 5. White Chert. 



(Cat. No. 99307a, U.S.N. M. Boone County, Missouri. G. W. Clements.) 

 Fig. 6. QUARTZITE. 



(Cat. No. 74«, U.S.N.M. District of Columbia. James Webster.) 



Fig. 7. Argillite. 



(Cat. No. 137563, U.S. X.M. Trenton, New Jersey. Tliomas .Wilson.) 



Fig. 8. White Flint. 



(Cat. No. 59473, U.S.N.M, Hancock County. Illinois. M. Tandy.) 



Fig. 9. Pale-browx translucext Chalcedoxy. 



(Cat. No. 59002, U.S.N.M. Pueblo of Taos, New Mexico. Capt. M. "Wheeler, I'. S. 

 Geological Survey.) 



Fig. 10. Quartzite. 



(Cat. No.139253, U.S.N.M. District of Columbia. S. V. Prouilflt.) 



Fig. 11. Black Obsidian. 



(Cat. No. 34564, U.S.N.M. Stockton. San Joaijuiu County, California. L. Bekling.) 



Fig. 12. Pink Chert. 



(Cat. No. 43032, U.S.N.M. Stockton, California. L. Belding.) 



Fig. 13. Greexish-black Flint. 



(Cat. No. 42650, U.S.N.M. San Joaquin County, (Jalifornia. L. Bekling.) 



Figs. 14, 15. Straw-colored Flint. 



(Cat. No. 136960a, b, U.S.N.M. Labette County, Kansas. W. S. Hill.) 



Fig. 16. Gray Flint. 



(Cat. No. 17493, U.S.N.M. Maysville, Mason County, Kentucky. J. W. Pearce.) 



