Note 9 — Chapter III · Weapons, Tools, Pottery; Origin of the Use of Fire, Clothing, Ornaments; Early Artistic Efforts.
N. D'Anvers translation
Flint arrows of triangular or oval form, notched or stalked, were everywhere used for a considerable length of time. They are found in the numerous caves of France, beneath the antas of Portugal, in the tombs of Mykenæ, as well as among the Aïnos of Japan and the Patagonians of South America. Their use necessarily involves that of a bow, yet we do not know of a single weapon such as that, or of one that could take its place, dating from Paleolithic times. Probably the rapid decomposition of the wood of which bows were made has led to their disappearance. De Mortillet9 mentions a bow found in a pile-dwelling in a bog near Robenhausen, which he ascribes to the Neolithic period. Another is known which was found at Lutz, also in Switzerland. To all appearance the most ancient bows of historic times greatly resemble these two prehistoric examples.