"Three single-grooved, double-bitted stone axes were collected from various points on the Yukon River. These are of interest because of their similar grooving and double cutting edges. Each is identical in form, each has been shaped by pecking, except in the sector near the cutting edges where they have been sharpened and polished by grinding. Between the raised borders of the centrally pecked groove and the cutting edges the surface has been shaped to a slight concavity by pecking. In Cat. No. 332805, U.S.N.M., this concavity is replaced by a well-defined convex bevel. The pecked groove is at right angles to the longitudinal axis and is comparatively shallow but has a wide diameter of 2 centimeters or more. The material is uniformly of basalt. The axes are 20 centimeters or more long, while the sectional diameter varies from 6 to 10 centimeters according to whether the ax is flattened or oval in section. "Grooved, double-bitted stone axes similar to those collected by Doctor Hrdlička from the Middle Yukon region have since become known also from stations farther south in Alaska. One was plowed up in a field near Matanuska and is now in the chamber of commerce exhibit at Anchorage, while another was collected in 1927 by the writer from near Chitna, Alaska. This Alaskan type of grooved ax is practically identical with that of the central Atlantic seaboard States, as figured by Walter Hough in the Proceedings of the United States National Museum, volume 60, article 9, page 14. "Another grooved type of stone object brought to the National Museum by Doctor Hrdlička is a stone war club of unusual type. It was found on the Yukon River beach 1½ miles below the Mission at Tanana. It is 20 centimeters (7.9 inches) long and is slender, the maximum sectional diameter being but 3.5 centimeters (1.4 inches). Like the single-grooved axes, it was shaped by pecking, but much of the surface was also ground. The reverse or hafting surface is flat; the obverse is convexly tapered to sharp cutting edges which are at right angles to the haft. The material is basalt. The hafting grooves, two in number, are comparatively deep and closely spaced. As to form this stone weapon is unique, appearing, so far as is known to the writer, nowhere else on the American Continent. It has been entered on the records of the National Museum as Cat. No. 332807, U.S.N.M.