Lign. 13:—Scales of Fishes in flint.
| Fig. | 1.— | A fragment of the pebble with the scales of the natural size. |
| 2.— | One of the Scales (of a species of Beryx) highly magnified. | |
| 3.— | The other Scale (of a species of Salmo). |
Plate II.
Longitudinal section of the Pebble.
Page 41.