LIST OF PLATES,

WITH DIRECTIONS TO THE BINDER.

I. Sketch of Harrington Mill Pit.Frontispiece

II. Map of the District of the Collieries .... Page I

III. Remarkable Strata. 22

IV. Workings in a Mine..~7... 79

V. Diagram of a Pit at the Furnace, descriptive

of Old Wastes, &c. 167

VI. Dr. Clanny’s Lamps, with those of Mr. Brand-ling, and Dr. Murray.. 113

VII. Sir Humphry Davy’s and Mr. Stephenson’s

Lamps. 199