If such relics were found nowhere else but in our own country, they would be curious, and worthy of preservation and attention: but it is an interesting fact, not however generally known, that they exist in many other parts of the world. Stone arrow and spear heads have been found in England for hundreds of years, and are believed to have been made and used by the Britons, who, in respect to civilization, were nearly on a level with our Indians. These relics are called by the common people Celts, from the race whose memory they recall; and particular accounts of them are given, with drawings, in several antiquarian works. They bear a striking resemblance to our Indian arrow heads; and many of them could be hardly, if at all, distinguished from those of America. African arrows have been brought to this country, in which the points were of the same forms and materials, and fastened in the same manner. About twelve years ago a vessel from Stonington was attacked by a party of Patagonians, who threw arrows on board. One of these which we procured, was pointed with a head of milky quartz, exactly corresponding with specimens picked up in New England. Among the relics found in excavating the low mounds on the plain of Marathon, as we were informed by one of our countrymen, who was at Athens some years ago, there were spear heads made of flint, which, he declared, were like those he had often seen ploughed up in his native fields. These, it was conjectured, might have been among the weapons of some of the rude Scythians in the Persian army, which met its defeat on that celebrated battle ground. A negro, from an obscure group of islands, just north of New Guinea, in describing the weapons in use among his countrymen, drew the forms of spear heads, which he said were often made of stones; and, when shown specimens from our collection, declared that they were very much like them. It has been thought, that certain instruments would naturally be invented by men in particular states of society and under certain circumstances, as the result of their wants and the means at hand to supply them. It is not, however, always easy to reconcile this doctrine with facts. For example, the black race of the islands north of New Holland, (of which so little is yet known,) appear to require the use of the bow as much as any other savage people, yet they are entirely ignorant of it, though it has been thought one of the simple, most natural and most indispensable instruments in such a condition of society.