Front matter
Reading edition
THE
CAMBRIDGE NATURAL HISTORY
EDITED BY
S. F. HARMER, Sc.D., F.R.S., Fellow of King's College, Cambridge; Superintendent of the University Museum of Zoology
AND
A. E. SHIPLEY, M.A., F.R.S., Fellow of Christ's College, Cambridge; University Lecturer on the Morphology of Invertebrates
VOLUME I

PROTOZOA
By Marcus Hartog, M.A., Trinity College (D.Sc. Lond.), Professor of Natural History in the Queen's College, Cork
PORIFERA (SPONGES)
By Igerna B. J. Sollas, B.Sc. (Lond.), Lecturer on Zoology at Newnham College, Cambridge
COELENTERATA & CTENOPHORA
By S. J. Hickson, M.A., F.R.S., formerly Fellow and now Honorary Fellow of Downing College, Cambridge; Beyer Professor of Zoology in the Victoria University of Manchester
ECHINODERMATA
By E. W. Macbride, M.A., F.R.S., formerly Fellow of St. John's College, Cambridge; Professor of Zoology in McGill University, Montreal
London MACMILLAN AND CO., Limited NEW YORK: THE MACMILLAN COMPANY 1906
All rights reserved
And pitch down his basket before us, All trembling alive With pink and grey jellies, your sea-fruit; You touch the strange lumps, And mouths gape there, eyes open, all manner Of horns and of humps. Browning, The Englishman in Italy