126 PRIMAEVAL MAN IN THE VALLEY OF THE LEA. The curious flint implement of aberrant form illustrated, one-half its actual size, in fig. 2, was found on the "Palaeolithic Floor" at Shacklewell, and is now in the British Museum, Bloomsbury. It belongs to the keen and unabraded class, and is made from a block of flint, which exhibits a deep natural depression on one edge; this de- pression was at first a large natural hole. The implement is beautifully made, and shows the work of a skilled and ex- perienced implement maker, but why a good workman should have used such a defective and unsuitable piece of stone to work upon, is difficult to imagine. The man or woman probably made the tool out of sheer wilfulness. When made it must have excited curiosity, and possibly some little mirth or even horse-play amongst the companions of the maker. One of the smallest of the Stoke New- ington Implements was found by Mr. G. T. Lawrence, in the trimmed flake illus- trated in fig. 3; this example weighs less than half an ounce. Some of these small tools resemble arrow, spear, and lance heads, but I greatly doubt whether any such weapons were known to Palaeolithic men. Our Palaeolithic precursors spoilt many of their implements in the course of manu- facture. On the