654 Proceedings of the Royal Irish Academy. 



the layer of shells is about 7 inches deep. On this island and on the 

 shore where it can be entered at low tide, I found numerous core- 

 like pieces of carboniferous chert, but no flakes or implements. The 

 shells in the midden I refer to were chiefly mussels, but there were 

 also some oysters and periwinkles. The midden, or collection of 

 shells, is probably of some antiquity, but not finding any other 

 remains to guide me, I could not speak with certainty regarding its 

 age. 



"Whitepask Bay. 



Since writing my last report I have made many visits to this 

 interesting place, and have dug over much of the old surface -layer, 

 always being rewarded with a good supply of remains similar to those 

 which have been previously found there. More bones of the Great 

 Auk were obtained in my later diggings, which Mr. Xewton, 

 palaeontologist to the Geological Survey, was good enough to 

 identify for me. The old surface at this station is a typical one, 

 as it always yields a fair supply of remains, including worked 

 flints. It is different in this respect from many other stations, 

 where much of the old surface yields few or perhaps no remains. 

 Whitepark Bay, Portstewart, with Grangemore and Dundrum, 

 county Down, and particularly the first-named, have aided me in 

 the interpretation of those other prehistoric sites along the north and 

 west coasts, where there is little or no flint ; as without the previous 

 knowledge gained by observing the various implements of flint, and 

 the hammer- stones and anvil-stones that had been used in their 

 manufacture, I should probably have seen no meaning in the poor 

 flakes and implements of quartzite and other crystalline rocks found 

 at such stations as Horn Head, Ballyness, and other places more 

 recently discovered along the west coast. By observing the flakes, 

 choppers, axes, and scrapers of flint in an old surface, such as we find 

 at 'VN'hitepark Bay, one can easily see that the flakes and spalls of 

 hard rock in the places where flint does not occur were, from 

 necessity, used as cutting implements. 



GLENLrcE, Scotland. 



In the Catalogue of the National Museum of Antiquities of 

 Scotland similar remains to those found in the Irish sandhills are 

 figured and described. From the Glenluce sands in Wigtonshire, 

 and the Culbin sands in Elginshire, many arrowheads, saws, knives, 



