LEWIS WRIGHT
AUTHOR OF 'LIGHT: A COURSE OF EXPERIMENTAL OPTICS'
5TH EDITION
RE-WRITTEN AND BROUGHT UP-TO-DATE BY
RUSSELL S. WRIGHT, M.I.E.E.
IN TWO PARTS
PART I
THE PROJECTION OF LANTERN SLIDES
WITH ILLUSTRATIONS
L O N G M A N S , G R E E N , A N D C O.
39 PATERNOSTER ROW, LONDON, E.C.
FOURTH AVENUE & 30TH STREET, NEW YORK
BOMBAY, CALCUTTA, AND MADRAS