ON

ELEMENTARY TRIGONOMETRY

AND

HIGHER TRIGONOMETRY.

BY THE

REV. J. B. LOCK, M.A.

FELLOW AND BURSAR OF GONVILLE AND CAIUS COLLEGE, CAMBRIDGE; FORMERLY MASTER AT ETON.

London

MACMILLAN AND CO., LIMITED

NEW YORK: THE MACMILLAN COMPANY.

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A TREATISE

ON

ELEMENTARY TRIGONOMETRY.

R2 75370

A TREATISE

514

ON

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MACMILLAN AND CO., LIMITED

NEW YORK: THE MACMILLAN COMPANY