TEXT BOOK AND WORK OF REFERENCE FOR ALL WHO MAY BE ENGAGED IN
THE THEORY OR PRACTICE OF ENGINEERING,

BY

LEWIS M. HAUPT,

ין

PROFESSOR OF CIVIL ENGINEERING, TOWNE SCIENTIFIC SCHOOL, UNIVER-
SITY OF PENNSYLVANIA; DIRECTOR, FRANKLIN INSTITUTE DRAWING
SCHOOL; IN CHARGE, GEODESY OF PENNSYLVANIA; MEMBER,
AMERICAN INSTITUTE MINING ENGINEERS; FRANKLIN
INSTITUTE; PENNA. HISTORICAL SOCIETY, ETC., ETC.

"Scientiarum omnium robur instar fascis illius senis; non in singulis bacillis,
sed in omnibus vinculo conjunctis."—BACON,

PHILADELPHIA:

PUBLISHED BY J. M. STODDART & CO., 723 CHESTNUT STREET.

1878.

H3

Entered according to Act of Congress in 1878, by Lewis M. Haupt, in the office of the Librarian of Congress, at Washington, D. C.

13079

WM. SYCKELMOORE,
Printer, 1420 Chestnut St.,

Philadelphia.

TO THE HONORABLE,

THE BOARD OF TRUSTEES,

OF THE

UNIVERSITY OF PENNSYLVANIA,

AND

CHARLES J. STILLÉ, LL. D.

PROVOST,

THIS WORK IS

VERY RESPECTFULLY

DEDICATED

DY

THE AUTHOR.