PHILLIPS-LOOMIS MATHEMATICAL SERIES

ILISTHAIND HOINAL CHOINVIS UNVIII
NOILVORCE TO LEIUNTO
ELEMENTS OF GEOMETRY

BY

ANDREW W. PHILLIPS, PH.D.

AND

IRVING FISHER, PH.D.

PROFESSORS IN YALE UNIVERSITY

PART ONE-PLANE GEOMETRY

DEPARTMENT OF EDUCATION
LELAND STANFORD JUNIOR UNIVERSITY

NEW YORK: CINCINNATI CHICAGO
AMERICAN BOOK COMPANY