EMBRYOLOGY
Reading edition
THE BEGINNINGS OF LIFE
By GERALD LEIGHTON, M.D., F.R.S.E.
AUTHOR OF “THE GREATEST LIFE,” “BRITISH SERPENTS” “HUXLEY: HIS LIFE AND WORK,” ETC.
LONDON: T. C. & E. C. JACK 67 LONG ACRE, W.C., AND EDINBURGH NEW YORK: DODGE PUBLISHING CO.