Plate 7. fig. 7. Section of the Goon Laz and the Pink Mine, p. 137.
8. Section of Tin Croft Mine, p. 152.
Plate 8. Fig. 9. Ground Plan of Herland and Drannack and Prince George Copper Mines, p. 146.
10. Section of Pleasure, Fancy, and North Herland Veins, p. 149.
11. Section of Manor Old Vein, p. 151.
PLATE 9, 10, 10*, 11.
In illustration of Mr. Webster's paper on the Strata lying over the Chalk, p. 161.
Plate 9. Map of the Basin of the Isle of Wight, shewing the hollow occasioned by a depression in the chalk within which some of the more recent strata appear to have been deposited; and also a part of the district in which the chalk is found wanting, where the strata below the chalk are exposed, p. 168 and 170. The detached figure below represents on a larger scale the west end of the Isle of Wight, where the Section of Pl. 11 is taken.
Plate 10. Map of a similar Basin in the vicinity of London, p. 171, 172.
Plate 10*. Map, shewing the relative position of the Basins of Paris, London, and the Isle of Wight.
Plate 11. Section of the Isle of Wight, from north to south, shewing the middle range of hills, consisting of strata of chalk, very highly inclined; the horizontal strata inferior to the chalk on the south, (right side of the plate); and the vertical strata of Alum Bay to the north, of later date than the chalk. Against the latter the horizontal and alternating series of marine and freshwater strata in Headen Hill, come up almost abruptly. The coloured section represents Alum Bay and Headen Hill on a larger scale.—p. 189.et. seq.
PLATES 12 and 13.
In illustration of Dr. Mac Culloch's paper on the Junction of Trap and Sandstone at Stirling Castle, p. 305.
Plate 12. Gives a general view of the Rock where the junction takes place.
Plate 13. Is a more detailed representation of that part of the junction where the strata of sandstone are dislocated and broken. It exhibits also the different colours of the trap and sandstone. The white line, near the fragment, is a vein of calcareous spar, p. 306.
