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PART I.
THE IRON ORES OF TIIE NORTILAND NORTH-MIDLAND

COUNTIES OF ENGLAND.

FUBLISHED BY ORDER OF THE LORDS COMMISSIONERS OF

HER MAJESTY'S TREASURY.

LONDON:

PRINTED FOR HER MAJESTY'S STATIONERY OFFICE.

PUBLISHED BY

LONGMAN, BROWN, GREEN, AND LONGMANS.

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In the annual Parliamentary Report of this year upon the Progress of the Geological Survey of the United Kingdom and this Establishment, I have already spoken of the inquiry into the composition of British iron ores as being of great national importance. I feel confident that this First Part of the Memoir on that subject, containing some of the analyses carried on in our metallurgical laboratory, under the able guidance of Dr. Percy, will satisfy the public as to one of the obvious uses of this School of Mines. The clear and accurate description, by our mining geologist, Mr. Warington Smyth, of the various rock formations in which the ores occur, forms a valuable portion of the Memoir.

RODERICK I. MURCHISON,

Director. Museum of Practical Geology,

Jermyn Street, May 23, 1856.

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