Page:A Treatise on Geology, volume 1.djvu/185

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CHAP. VI.
169
PALÆOZOIC STRATA.
Yds. Ft. In. Yds. Ft. In.
Rock measures 10 1 2
Coal (Stone Coal) 0 1 2
Rock measures 19 0 7
Coal (Yard Coal) 1 0 0
Rock measures 7 1 3
Coal 0 0 6
Rock measures 18 0 1
Coal (Bensham) 1 0 3
Rock measures 26 0 6
Coal 1 0 6
Rock measures 9 1 10
Coal 1 0 2
Rock measures 1 1 0
Coal 0 0 9
Rock measures 9 2 9
Coal (Low Main) 2 0 6
Rock measures 27 0 0
Coal 0 1 6
Rock measures 15 0 0
Coal 0 0 6
Rock measures 6 0 0
Coal 0 0 2
Rock measures 10 0 0
Coal 0 0 6
Rock measures 4 0 0
Coal 0 0 6
Rock measures 12 0 0
Coal (Wbickham St.) 2 0 0
Rock measures 10 0 0
Coal (Brockwell) 1 0 2
Various rock measures 50 2 0
Millstone grit
—————— ———————
360 0 6 15 2 3

In Mr. Buddle's excellent sections, published in the 'Transactions of the Natural History Society of Newcastle,' the extent of the several alternations of coal, sandstone, shale, &c., in the upper parts of this series are clearly shown. There is not much ironstone in the coal tracts of the Tyne and Wear. In Yorkshire, the total thickness of the coal formation is from 1000 to 1500 yards. In Lancashire arid Wales greater thickness must be ascribed to it. In South Stafford-