Charlotte-street, Bloomsbury,
London, 1st March, 1821.
EXPLANATION OF THE PLATES
OF THE
FIRST VOLUME.
FRONTISPIECE.
This is explained in pages [236], [237].
PLATE I.
| Fig. | MINERAL DEPOSITS. |
| 1. | Horizontal beds or strata. |
| a. Veins or dykes. | |
| 2. | Bending strata. |
| 3. | Minerals in detached masses. |
| 4. | Disjoined strata. |
| b. A fault. |
PLATE II.