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Lengths and Levels
to
BRADSHAW’S MAPS
of
THE CANALS,
NAVIGABLE RIVERS,
and
RAILWAYS,
in the
PRINCIPAL PART OF ENGLAND.
dedicated to
THOMAS TELFORD, F.R.S. L. & E.
President of the Institution of Civil Engineers.
DATUM, SIX FEET TEN INCHES UNDER THE SILL OF THE OLD DOCK GATES AT LIVERPOOL.
London:
PRINTED BY E. RUFF, 2, HIND COURT, FLEET STREET.
1833.
