Fig. 1.—The penetration of a blunt arrow shot from a 75-pound bow at an inch fir board, showing the type of fracture produced at a distance of 10 yards.

Fig. 2.—The penetration of a broadhead hunting arrow shot from a 75-pound bow at 10 yards. The broadhead has gone in almost crosswise to the grain.

Fig. 3.—A lance-shaped arrowhead shot from the same bow, showing the penetration from a distance of 10 yards.