There are still one or two other forms to which, from the character of their edge, the designation of scraper may be given. The instrument from the Yorkshire Wolds, shown in Fig. 225, may, for instance, be called a straight scraper. It is made from a broad flat flake, with a well-developed bulb of percussion on the face, and the counterpart of another at the back, so that the section at the base is much curved. The point of the flake and its left side have been chipped away, so that they are nearly straight, and form between them an angle of about 60°. The edge is sharper, and the form, I think, more regular than if it had been used in conjunction with pyrites or steel, and I am therefore inclined to regard it as a tool. The late Mr. Charles Monkman, who gave me this specimen, also gave me another, more crescent-shaped in form, the base being roughly chipped to a regular sweep. I have another larger flint, similar to Fig. 225, found by the late Mr. Whitbourn, F.S.A., in the neighbourhood of Godalming. Before pronouncing definitely as to the degree of antiquity to be assigned to such instruments, it will be well to have authenticated instances of their discovery in association with other remains, and not merely on the surface. In character, however, they much resemble other flint instruments of undoubtedly high antiquity, though they present the peculiarity of having the edge at right angles to the axis of the flake from which they are made, instead of being parallel to it. A singular flint instrument of a rudely heart-shaped form, with one straight serrated edge, is figured with other tools, &c., from the Culbin Sands.[1437] To another of these forms, of which a not very first-rate example is given in Fig. 226, the designation of hollow scraper may be applied, the scraping edge being concave, instead of as usual, convex. This specimen also is from the Yorkshire Wolds. I have, however, found analogous instruments on the Sussex Downs, the hollowed edges of which appear to have been used for scraping some cylindrical objects. In |320| Ireland this form not unfrequently occurs. I have several specimens with the hollow as regular in its sweep as any of the scrapers of the ordinary form, and I have thought it advisable to figure a typical example as Fig. 226A. They seem well adapted for scraping into regular shape the stems of arrows or the shafts of spears, or for fashioning bone pins. Among modern artificers in wood, bone, ivory, or metal, scraping tools play a far more important part than would at first sight appear probable, looking at the abundance and perfection of our cutting tools and files. The latter, indeed, are merely compound forms of “scrapers.” [Illustration: Fig. 226A.—North of Ireland.]