WILLIAM EDWARDS HENDERSON, PH.D.
Reading edition
ASSOCIATE PROFESSOR OF CHEMISTRY, OHIO STATE UNIVERSITY
REVISED EDITION
GINN & COMPANY BOSTON * NEW YORK * CHICAGO * LONDON
COPYRIGHT, 1905, 1906, BY WILLIAM MCPHERSON AND WILLIAM E. HENDERSON ALL RIGHTS RESERVED The Athenæum Press GINN & COMPANY * PROPRIETORS * BOSTON * U.S.A.
Transcriber's note: Minor typos have been corrected.