Knowles — Report on Flint Implements. 189 
depths, showing that they had been weathered and rolled about so as 
to break the porcelaneous glaze, and wear away some of the crust 
previous to being included in the deposit which makes up the raised 
beach, and therefore they must be considerably older than the deposit 
in which they are embedded. The raised beach containing the worked 
flints extends from Larne round the shores of Belfast Lough, and it is 
lalso to be found northwards from Larne. It is seen at the Giant's 
Causeway, and implements of a similar kind to those from Larne are 
found on the shore at Whitepark Bay. Belfast Lough and Larne seem 
rather to have been a centre from which flints of this older series 
sdrifted southwards, as I have found them at Dundrum, Malahide, and 
some other stations, in many cases wrought into newer implements by 
the people who worked in stone among the sand-hills. At Dundrum, 
the Causeway, and other parts, the sand-hills containing remnants of 
the old surface and flint implements rest on the raised beach contain- 
ing flakes and cores of the older series. At Larne there are excellent 
sections, and the method of investigation which I employed was to 
;ake a band at a particular depth, clear away the loose matter on the 
;aee, and work inward to the undisturbed material. In this way I 
aave obtained many worked flints in situ at depths of six to eighteen 
eet. I now beg to present a representative series to the Academy. 
NOTE ADDED IK THE PRESS. 
Some months ago a mammoth's tooth was found by Dr. Moran, 
[. M. Inspector of Schools, in the gravel beds of the raised beach at 
larne in association with the worked flints. The tooth was exhibited, 
ad an account of the find read by Dr. Moran to the Belfast Nat. Hist, 
id Philosophical Society, on 5th February, 1889. 
K. I. A. PKOO., SER. m., VOL. 1. 
p 
