[6] _The British Dominions in North America._ Lond. 1832. Vol. i. p. 89. [7] _Consolations in Travel, or the Last Days of a Philosopher._ [8] _Prehistoric Annals of Scotland_, vol. i. p. 41. [9] _Antiguedades Prehistoricas de Andalusia_, Madrid, 1868. [10] _The Land of Israel: a Journal of Travels in Palestine_, 1865, p. 11. [11] J. Trimmer: _Jour. Geol. Soc._, vol. ix. [12] _Prehistoric Annals of Scotland_, 1851, 1st Ed. p. 29. [13] _Archæologia_, vol. xiii. p. 206; vol. xxxviii. p. 301. [14] _Antiquity of Man_, 4th Ed. p. 190. [15] _Archæologia_, vol. xxxviii. p. 296. [16] _Prehistoric Annals of Scotland_, 1st Ed. p. 33. [17] _Edin. Phil. Jour._, i. 395. [18] This question was first brought forward by the author in an “Inquiry into the Evidence of the existence of Primitive Races in Scotland prior to the Celtæ.”—_British Association Report_, 1850. [19] _Hamlet_, Act ii. sc. 2. [20] Montgomery, _Pelican Island_. [21] _Proceedings of the Academy of Natural Sciences, Philadelphia_, July 1859, pp. 178, 186. [22] Mantell’s _Fossils of the British Museum_, p. 473. [23] _American Journ. of Science and Arts_, vol. xxxvi. p. 199, First Series. [24] _Philosophical Transactions_, vol. xxiv. p. 85. [25] _Geol. Survey of Illinois_, by A. H. Worthen, vol. i. p. 38. [26] _Types of Mankind_, p. 351. [27] _Antiquities of the Southern Indians_, p. 293. [28] _Smithsonian Report_, 1867, p. 407. [29] Dr. Usher, _Types of Mankind_, p. 351. [30] _Types of Mankind_, p. 272. [31] _La Normandie Souterraine_, p. 76. [32] _Prehistoric Annals of Scotland_, vol. ii. p. 505. CHAPTER III. THE QUARRY. THE QUARRY—BRIXHAM CAVE—BRIXHAM FLINT IMPLEMENT—FLINT RIDGE, OHIO—FLINT PITS—DRIFT QUARRY DEPOSITS—TRACES OF PALÆOLITHIC ART—LANCEOLATE FLINTS—ALMOND-SHAPED FLINTS—THE SHAWNEES—THE COLORADO INDIANS—CACHES OF WORKED FLINTS—SEPULCHRAL DEPOSITS— CAVE-DRIFT DISCLOSURES—ILLUSTRATIVE ANALOGIES—CINCINNATI COLLECTIONS—HORNSTONE SPEAR-HEADS—AMERICAN NEOLITHIC ART— FLINT DRILLS—MODES OF PERFORATION—FLINT KNIVES—RAZORS AND SCRAPERS—ARROW-HEAD FORMS—DISCOIDAL STONES—SINKERS AND LASSO-STONES—CUPPED STONES—ARCHÆOLOGICAL THEORIES—GEORGIA BOULDERS—HAND CUP-STONES—NEOLITHIC GRINDSTONES—ARCHÆOLOGICAL ENIGMAS—ANCIENT ANALOGIES.