| [13] | Ibid. N.S. vii. 356. |
| [14] | Ibid. N.S. xii. 436. |
| [15] | Archæologia, xiii. 204. |
| [16] | Archæologia, xiii. 224, 225; pl. xiv. xv. |
| [17] | Athenæum, Dec. 18, 1886. |
| [18] | U.S. Geological Survey, 1872, p. 652. |
| [19] | Primitive Industry, Figs. 241, 254, 292, 295, etc. |
| [20] | Evans’ Stone Implements, Fig. 94. |
| [21] | Archæologia, xlii. 72. |
| [22] | Ibid. p. 68. |