of the Mississippi,[194] accompanied with celts, stone hatchets, and other primitive implements closely resembling those of the British Stone Period; though also with many more so essentially differing, as to forbid us deducing from such chance coincidences any fanciful community of origin between the Allophylian colonists of Europe and the aborigines of America. Still ruder are the primitive necklaces, formed of the common small shells of our coasts, such as the _Nerita litoralis_, and even the _Patella vulgata_, or common limpet, perforated, apparently, by the simple process of rubbing the point on a stone, and then strung together with a fibre or sinew. It may perhaps be thought by some that sufficient space has already been devoted to this infantile period of the race, yet childish as such decorations seem, they are found among the valued relics of men whose giant monuments have outlived many massive structures destined by later ages to perpetuate the memory of historic deeds, or consecrated to the services of the all-powerful Church of medieval Christendom. Underneath the cromlech discovered on levelling a tumulus in the Phœnix Park at Dublin, in 1838, two male skeletons were disclosed, and beside the skull of each lay the perforated shells of a necklace which had doubtless been placed around their necks when they were deposited in the simple but grand mausoleum that still attests the veneration of the ancient natives for their chiefs. A portion of the vegetable fibre with which they had been strung together remained through some of the shells, and the only other relics found in the grave were a small fibula of bone, and a knife or lance-head of flint. The common British bivalves are also found used for similar decorations. In a cist discovered on the coast of the Frith of Forth, during the construction of the Edinburgh and Granton Railway, the only relics deposited beside the skeleton which it enclosed were a quantity of the _cardium commune_, or cockle, of different sizes, rubbed down until they were reduced nearly to rings; while in another cist, opened at Orkney, and more particularly referred to in a previous chapter, about two dozen oyster shells were discovered, each perforated with a hole nearly an inch in diameter. FOOTNOTES: [191] Archæol. Scot. vol. iii. p. 299. [192] Archæologia, vol. viii. p. 429. Plate XXX. fig. 6. [193] Ancient Wiltshire, Plates II. and XII. [194] Ancient Monuments of the Mississippi Valley. Smithsonian Contributions to Knowledge, vol. i. p. 237. CHAPTER IX. CRANIA OF THE TUMULI.