“Bryce Wright in his description of the Scandinavian knives or daggers refers to them as being most beautifully dentilled with parallel flaking and serrated edges. He says: ‘These knives or lances are true marvels of prehistoric art, and show an amount of skill and workmanship which cannot be imitated in the present age, the art of fashioning them having been entirely lost.’ Sir John Lubbock, on page 104 of ‘Prehistoric Times,’ says: ‘The crimping along the edge of the handle is very curious.’ As to parallel flakings with serrated edge, I have endeavored to show (from a mechanical standpoint) that the refuse of the great flint quarries points to a mode of working that must leave the dentilled markings parallel, and the edges worked from, serrated. What Lubbock speaks of as curious crimping on the edge of the handles is but the natural result of the mode of working. I have examined these Scandinavian dagger-handles, and find the same appearance on the blades of large-size broken piercers, numbers of which I have found among the rubbish, picked up, examined, and thrown away as imperfect specimens. Some of them have a spread, flat end or handle of over one and a half inches, with nearly square blades, evidently having been worked by down pressure from the edges corresponding to the spread end, these forty-five degrees flakes meeting form angles and produce the square. The interlocking of the flakes at their meeting causes the crimped appearance, in some cases not unlike a row of beads, very beautiful, but not made with any such view, but simply the natural result of the mode of working.