Special Reports on the Mineral Resources of Great Britain. Vol. IX, Iron Ores (cont.): Sundry Unbedded Ores of Durham, East Cumberland, North Wales, Derbyshire, the Isle of Man, Bristol District, and Somerset, Devon, and Cornwall. By T. C. Cantrill, R. L. Sherlock, and H. Dewey. Mem. Geol. Surv. pp. 87, with 7 figs. 1919. Price 3s. 6d. net.

1920 ◽  
Vol 57 (1) ◽  
pp. 38-39
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