A TEXT-BOOK

OF

EUCLID'S ELEMENTS.

OF

EUCLID'S ELEMENTS

FOR THE USE OF SCHOOLS

BOOKS I. VI. AND XI.

BY

H. S. HALL, M.A.

FORMERLY SCHOLAR OF CHRIST'S COLLEGE, CAMBRIDGE;

AND

F. H. STEVENS, M.A.

FORMERLY SCHOLAR OF QUEEN'S COLLEGE, OXFORD;

London

MACMILLAN AND CO., LIMITED

NEW YORK: THE MACMILLAN COMPANY

1898

All rights reserved