1886-1887.] 527 



at once picked up an undoubted flake. None of us saw where 

 it came from. We did not see it dug out,|I certainly did not, 

 and if Mr. Praeger said he saw it dug out I would have every 

 confidence in what he states regarding it. The bed was 

 carefully examined and no other indication of worked flints 

 was found. For my part, I do not think that the result was 

 satisfactory. It is quite possible that a lower bed such as this 

 at I2'6 may contain worked flints, and I look upon this single 

 flake as sufficient to make us hesitate in coming to a final 

 opinion until this very bed is re-examined over a larger area. 



We have, however, clearly established the fact that the 

 gravels are stratified, and that the worked flints are not mixed 

 through them. We may be able to prove ultimately that the 

 worked flints are confined to certain beds, some very much 

 deeper than others. I am prepared for this when proved ; but 

 up to the present I hold that all the evidence tends to show 

 that the flakes are confined to the upper gravels. 



WILLIAM GRAY. 



Dear Sir, 



I have read over your report on the flint flakes, which is 

 very full and comprehensive. I think it will meet with the 

 entire approval of those present on the occasion. 



With regard to the flake which gave rise to some discussion 

 at the time. I was standing close by Mr. Praeger at the time 

 when he lifted it off a shovelful of loose sand and gravel. We 

 neither saw it dug up when the men were loosening the solid 

 strata, nor falling from above ; but when they turned between 

 us and the escarpment to throw it out, particles already 

 loosened at the top were occasionally trinkling down behind 

 them, and in that way it might have got into the loosened stuff 

 unnoticed. This is the only way I can account for its presence, 

 as wherever the original strata remain unbroken by traffic or 

 agriculture, no indication whatever of flint flakes, either in the 

 north or south escarpments could be found. They seem to be 



