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Franus & Goddard, Luth, 51, Grays Inn Road, WC

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CONTAINING

THE ERRORS OF THE MAGNETIC NEEDLE; PRACTICAL
GEOMETRY AND TRIGONOMETRY;

WITH

DESCRIPTION, USE, AND ADJUSTMENTS OF THE MINERS'
NEW TRANSIT THEODOLITE;

ALSO, A NEW PLAN OF SETTING OUT UNDERGROUND RAILWAY
CURVES; UNDERGROUND LEVELLING;

CONSTRUCTION OF LONGITUDINAL, TRANSVERSE, AND GEOLOGICAL SECTIONS OF MINES, ETC.

WITH TABLES OF DISTANCES FROM PLANES OF THE MERIDIAN AND LATITUDE, TABLES OF
NATURAL SINES, SECANTS, TANGENTS, RATIOS OF INCLINED PLANES, ETC.

ATCHLEY AND CO.,

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1863.

[The right of Translation is reserved.]

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This Work is respectfully Dedicated

TO THE

DEAN FOREST IRON COMPANY,

IN GRATEFUL ACKNOWLEDGMENT OF MANY

FAVOURS RECEIVED,

BY THE AUTHOR.