_Flint Arrow-heads._--Flint as the hardest stone and the readiest to chip was much sought for; and as Antrim furnished this in nodules in the Chalk formation, it was there worked in great quantities. Knives, scrapers, arrow- and spear-heads, chisels and axe-heads were fashioned in many places, especially on the coast where the flint accumulates along the undercliffs, or on the raised beaches of Larne, Kilroot, and Whitepark Bay. In these places hundreds of flakes may be gathered in a short time--the waste material from the workshops of the makers of flint implements that once existed on these sites. At Portstewart and Castlerock, on the coast of Donegal, at Dundrum, Co. Down, and along the Bann valley, great quantities of worked flints have been found, indicating a wide area for the manufacture of weapons. [Illustration: Fig. 1. Spear- or Javelin-head--full size.] [Illustration: Fig. 2. Spear-head--Scale, two-thirds.] An examination of flint flakes will show certain general characteristics which, when found existing in a large number of instances, are conclusive that they are the result of manipulation and not of natural agency. Hammer-stones and cores are also found in numbers on these sites. The latter are the lumps from which the flakes were struck; and the hammer-stones, generally pebbles of any hard stone, such as quartzite, basalt, or granite, show signs of use in their chipped ends. Scrapers, so much used in the curing and dressing of skins, and such like purposes, are also found in great numbers and variety. The women of the Eskimo and other Arctic tribes, at the present day, use flint scrapers in dressing the skins of animals and birds. These rude instruments have been found in quantities in the hut-sites on the coasts of Down, Antrim, and Donegal, and other places that marked the wanderings of Neolithic man.