24 



THE GEOLOGIST. 



Fig. 18 is another and very remarkable flint-instrument, probably a lance- or 



javelin-head, from the superficial gravel 

 above the London Clay, at Hornsey, in 

 Middlesex, and now in the collection of 

 Mr. N. T. Wetherell, of Highgate, to 

 whom it was brought a short time since 

 by one of the quarrymen as a fossil fish; 

 the workman mistaking the white chalky 

 spot at one end for the eye, and the nu- 

 merous fine chippings for scales. It is 

 about six inches long by two inches broad, and but little more than a quarter of 

 an inch in its central thickest part. 



In Mr. Mackie's Diagram No. VI. there is figured from the collection of 

 the Society of Antiquaries (fig. 12 of diagram) a very long, narrow, and re- 

 markable flint-instrument, apparently either a lance-head or a dagger, although 

 it may have been used for the more pacific purposes of a knife. From its 



Fig. 18.— Flint Javelin or Spear-head f?J, 

 found in the Superficial Gravel above 

 the London Clay, at Hornsey, Middlesex. 



Fig. 19.— Flint Implement in the Collection of the Society of Antiquaries. Size : 10 inches by 



1| inches. 



general appearance one would suspect it to have come from some sandy or 

 gravelly deposit, and to be of veritable geological age ; but there is no entry in 



the Society's catalogue of either the time or 

 place of its discovery, and it may after all be 

 only of Celtic date. We give also another 

 worked instrument fig. 20 (fig. 1 9 of diagram) 

 contained in the same collection, but of which 



Pig. 20.— Flmt Saw ? (British). In i j p n , r j- 



the Collection of the Society of Anti- also no record of the circumstances of dis- 

 quaries of London. Size: 6 inches covery are preserved. It niav be a gravel 

 by H inches. specimen. 



_ We now turn to another class of fossil implements, formed of mere flakes of 

 flints, which are more likely to escape detection than the larger instruments we 

 have been describing, not only from their smaller size, but also from their 

 liability to breakage, and the consequent resemblance of their broken pieces to 

 mere natural chippings and fragments of flints. The flake-instruments are 



E 



Fig. 21.— Flint-flake Knife from the Turbary of the Somme, at Abbeville. Natural size. 



Well known from Celtic graves, and are commonly met with amongst the relics 

 of all savage tribes, in the form of arrow-heads, knives, dart- and javelin-points, 

 ami saws; and flake-knives and flake arrow-heads have also been met with in 

 ossiferous cave-, and gravel-deposits, and as well as in peat-bogs, turbaries, and 



