OF

SURVEYING.

DESIGNED FOR THE USE OF

SURVEYORS AND ENGINEERS GENERALLY.

BUT ESPECIALLY FOR THE USE OF

STUDENTS IN ENGINEERING.

BY

J. B. JOHNSON, C.E.,

Dean of the College of Mechanics and Engineering of the University of Wisconsin;
Formerly Civil Engineer on the U. S. Lake and Mississippi River
Surveys; Member Inst. Civil Engineers; Member of the
American Society of Civil Engineers, etc., etc.

FIFTEENTH Edition, revISED AND ENLARGED.

FIRST THOUSAND.

NEW YORK:

JOHN WILEY & SONS.

LONDON: CHAPMAN & HALL, LIMITED.