18. (40566). Quite small, probably a hatchet, of firm basalt, grooved near the hammer end.
19. (40567). Much larger than the last, basaltic; groove quite deep and smooth, hammer end circular, large, and blunt.
20. (40568). Grooved axe of quartzitic rock.
21. (40569). Pick-shaped axe, grooved entirely around, with imperfect depressions which were in the water-worn boulder from which it was made; about six inches in length.
22. (40570). Boulder of sandstone with groove near the middle.
23. (40571). Flat basaltic boulder, grooved near the center, straight on the back, and tapering above and below the groove.
24. (40572). Small basaltic hammer and axe with groove near the large end.
25. (40573). Small grooved axe composed of hard sandstone; hammer end large, edge quite perfect.
26. (40574). Small boulder of basalt, ground to an edge at one end and rounded off at the other; doubly grooved.