No. 421.] PREHISTORIC HAFTED FLINT KNIVES. 3 
The knife from the Marriott mound, Ohio, has a blade of 
black flint, nearly triangular in outline, inserted into a notch 
cut in the larger end of a curved antler prong. This knife 
and those from the Mexican caves, together with one from 
the Santa Barbara Islands, are on exhibition in the Peabody 
Museum. 2d 
While studying the remarkable collections from the cliff 
houses of the Southwest collected a few years since by the state 
of Colorado and by private individuals, the writer had unusual 
opportunities for examining a number of prehistoric flint knives 

Fic. 2. — Prehistoric knives from the cliff houses, 44. 
hafted in wooden handles. He is indebted to those in charge of 
the collections for permission to make the drawings accompany- 
ing this paper. Several of these knives are now in the Free 
Museum of Science and Art in Philadelphia. 
The blades are chipped from different varieties of flint and 
chalcedony, and are of the common typical forms (leaf-shaped, 
triangular, stemmed, and notched) usually found in a collection 
of chipped implements. The handles are of wood, in most 
instances symmetrically fashioned and well finished, the blades 
being inserted into a deep notch and cemented with gum, prob- 
ably of Larrea mexicana. In a few examples, windings of sinew 
or of cord made from yucca fiber furnish additional security. 
