174 kepokt— 1879. 



was to ascertain if there were the same implement-bearing layers here 

 as at Portstewart and Ballintoy. Mr. Knowles visited Dnndrum on two 

 occasions alone in July, and once in August, accompanied by the Rev. 

 Dr. Grainger. On these three occasions 1122 manufactured objects were 

 obtained, viz. 1013 scrapers, forty-one arrow heads, forty-six scrapers 

 with concave scraping edge, eighteen dressed flakes and borers, one stone, 

 somewhat of the nature of an oval tool-stone, one of those oval stones 

 with a small track on each side, described in the Catalogue of the Royal 

 Irish Academy as sling- stones, one stone like a tool-stone, but having only 

 one side indented, and also a small serpentine bead of similar form, but 

 slightly larger than those found at Portstewart, which have been described 

 in previous papers. Here, as at Portstewart and Ballintoy, there are some- 

 times several black layers to be seen, and it has been remarked that 

 generally only one of those layers contains flints. Sometimes a large pit 

 has a pillar of sand standing up capped by a black layer, or perhaps there 

 may be a large table-like mass, capped in a similar way. The majority of 

 the objects described were found exposed, many showing evidence of 

 having only recently dropped from the layer, but in places where exca- 

 vation was tried as an experiment, scrapers were found, as at the places 

 previously mentioned. In one place the flint objects were found close to 

 the edge of a layer, where they had been set free by denudation ; while in 

 another layer, higher up on the side of the same pit, there was no trace 

 of implements, though full of rounded and broken stones, and at first 

 sight presenting a very similar appearance to the layer below. 



The scrapers are mostly all of very small size. Hundreds of them 

 are not larger than the finger-nail, and in almost every case, no matter 

 how small, there is found remaining a portion of the original crust of the 

 pebble from which the scraper has been formed. Some of them are very 

 neatly dressed, and are beautiful objects. 



About one-third of the arrowheads are perfect and of great beauty. 

 In one case a broken one has had the broken edge dressed and formed 

 into a scraper. 



The scrapers with concave scraping edge were no doubt used for 

 scraping cylindrical objects. They are nearly all perfect, and it was re- 

 marked about them, as about the arrowheads, that where one was found 

 several more might be expected. These hollow scrapers were found 

 chiefly in three spots, and about a dozen were obtained in each place. The 

 other objects are chiefly flakes, dressed over the back or along the edges, 

 and having a flat side undressed. The contrast between this place and 

 Ballintoy is very marked. Here everything points to a scarcity of 

 material, and comparatively few flakes are left undressed. Even other 

 rocks are found split up into flakes, and two beautiful flakes of a rock 

 crystal were picked up. At Ballintoy and some other places, on the 

 other hand, there seems to have been a perfect waste of material, and 

 every object is of large size. 



The stone which bears some resemblance to a tool-stone is rather 

 irregular in form, and the hollows are not equal in size nor exactly 

 opposite each other, but the hollows communicate by a very narrow 

 opening. 



The so-called sling-stone was picked up by Dr. Grainger. He was 

 walking slowly along near the edge of a large pit and found it lying 

 among a few other pebbles, but it cannot be said that any flint objects 

 were in association with it. At the distance of a few yards, however, 



