Publisher's Synopsis
Excerpt from On Slate and Slate Quarrying: Scientific, Practical, and Commercial
None Of these pamphlets are illustrated, and the four reprints of letters to the Mining Journal' are, I think, now out of print.
A practical and sensible paper on the working of the Festiniog Quarries, by Messrs. Langley and Bellamy, has also just been issued by the Institution of Civil Engineers.
As far as was practicable I have availed myself of the help afforded by these various pamphlets, and the references contained in larger works. My thanks are also due to my son, Mr. E. H. Davies, for his assistance in the preparation of the plans and sections by which the book is illustrated.
I trust that the book will do its part in helping to further remove what has grown into a great national industry out of the region Of speculation and to place it on a sound scientific and commercial basis.
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