. The Quarterly journal of the Geological Society of London. Fig. 8.—The vein shown in PI. XVII, feathering out at its beloiv the Figs. 11 & 12.—11. Veins seen 200 yards above the boathouse. 12. part 3] THE PSEUDOTACHTLTTE OF PARIJS. 205 Fig. 13.—PseudotachyJyte 200 yards above the boathouse.

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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology