The object of this paper is to describe and illustrate a series of heavily mineralised bone implements of a primitive type which (in the case of the Red Crag) have been found associated with numerous humanly-fashioned flints during diggings conducted in the detritusbed below the base of the Red and Coralline “Crags” of Suffolk.

The author is fully aware of his heterodoxy in claiming that bone was utilised in implement-making at such a remote period as that to which any pre-Crag remains must be referred, but having conducted a number of experiments in which mineralised and unmineralised bones were subjected to the effects of fortuitous blows and pressure, and after having fractured numerous modern shank bones of the bullock by striking and cutting them with flints and other stones held in the hand with a view of thus shaping them to the forms of the sub-Crag examples, he is compelled to regard these latter specimens as undoubted works of man.