ARROWPOINTS, SPEARHEADS, AND KNIVES. 937 



CLASS K. — THIANIJULAK IN SECTION. (Plate .39, iigS. 1^.) 



Tliese are tbiu and narrow rnde Hakes struck from 

 nuclei and left nearly iu their original condition ex- 

 cept that a rude stem lias been chipped, and where 

 necessary they have been brought to a point. I'hey 

 are peculiar in being made triangular in section and 

 that they are restricted to the province of Chiriqui, 

 Panama. The U. S. National Museum is indebted to 

 Mr. J. A. Mc^Jiel for its specimens, which have been 

 described aiul tigured by Dr. W. H. Holmes.' 



The larger ones were of fine-grained, slaty-looking 

 tufa, while the smaller were of flinty jasper of reddish 

 and yellowish hues. 



Fig. 188 is one of these small Jasper specimens from 

 Chiriqui. They are made entirely by chipping, and as 

 the material is hard and refractory, the workmanshii) 

 is rude. This form is shown in Plate 39, figs. 1 to 4. 



Fig. 188. 



PECULIAR FORM OF 

 ARROWPOINT, TRI- 

 ANGULAR IN SEC- 

 TION, REDDISH JAS- 

 PER. 



Chiriqui, Panama, 

 United States of 

 Colombia. 



Division IV, Class E. 



Tilt. No. 98477, U.S.N.M. 



-ISKOADEST AT CUTTING END — TUANCHANT TRANSVERSAL. 



figs. 5-8.) 



(Plato 39, 



Fig. 180 (a, h) rei)re3ents two specimens of this chiss, and figs. 5 to 8 

 on Plate 39 represent others. They are thin, almost flake-like in 

 appearance, no', made pointed, nor are the edges worked down by sec- 

 ondary chipping. The cutting edge is at the front, at the broadest 

 end, chisel-shaped — tranchant transversal — and, thus propelled, will 

 make a wound large enough for the arrow shaft to follow. Whether 

 these were really arrowpoints, or were used as knives, is a disputed 

 question. De Mortillet devotes Plate XXXIX of the Musee Prchis- 

 torique to them, showing fifteen illustrations (figs. 319-334). One of 

 them, from Denmark, is still lashed to its shaft or handle by threads 

 or fibers of bark. The instrument (fig. 190a) is smal> enough for an 



Sixth Annual Report of the Pnreau of Ethnology, 1884-85, \^\>. 33, 34. 



