THE

MECHANICAL PRINCIPLES

ОР

ENGINEERING

AND

ARCHITECTURE.

BY

HENRY MOSELEY, M.A. F.R.S.

CHAPLAIN IN ORDINARY TO THE QUEEN, CANON OF BRISTOL, VICAR OF OLVESTON;
CORRESPONDING MEMBER OF THE INSTITUTE OF FRANCE, AND FORMERLY PROFESSOR

OF NATURAL PHILOSOPHY AND ASTRONOMY IN KING'S COLLEGE, LONDON.