A

PRACTICAL TREATISE

ON

HYDRAULIC MINING

IN

CALIFORNIA.

WITH

DESCRIPTION OF THE USE AND CONSTRUCTION OF

DITCHES, FLUMES, WROUGHT-IRON PIPES, AND DAMS;

FLOW OF WATER ON HEAVY GRADES, AND ITS APPLICABILITY, UNDER
HIGH PRESSURE, TO MINING.

BY

AUG. J. BOWIE, JR.,
Mining Engineer.

FIFTH EDITION.

NEW YORK:

D. VAN NOSTRAND COMPANY,

23 MURRAY AND 27 WARREN STREET.

THIS WORK IS DEDICATED

ΤΟ

ROSSITER W. RAYMOND, PH.D.,

RV

THE JTHOR.