THE
NEW GRESHAM
ENCYCLOPEDIA

VOLUME I


EDITORS

ANGELO S. RAPPOPORT, Ph.D., B.ès L.

R. F. PATTERSON, M.A.(Cantab.), D.Litt.(Glasgow).

JOHN DOUGALL, M.A., D.Sc., F.R.S.E.; Gold Medallist

of the Royal Society of Edinburgh.


ALGAE