SLATE AND SLATE QUARRYING

By D. C. DAVIES, F.G.S.

MINING ENGINEER EXAMINER OF MINES, QUARRIES, AND COLLIERIES

AUTHOR OF "A TREATISE ON METALLIFEROUS MINERALS AND MINING," "A TREATISE
ON EARTHY AND OTHER MINERALS AND MINING," ETC.

Third Edition

Capio Yumen

LONDON

CROSBY LOCKWOOD AND CO.
7, STATIONERS' HALL COURT, LUDGATE HILL

1887

[All rights reserved]

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