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. Surpuey, M.A., Fellow of Christ’s College, Cambridge, 
University Lecturer on the Morphology of Invertebrates. 
To be completed in Ten Volumes. 8vo. Price 17s. net each. 
[Now Ready. ] 
MAMMALS 
VOLUME X 
By F. E. Bepparp, M.A. Oxon., F.R.S., Prosector to the Zoological Society, 
WORMS, LEECHES, ETC. 
VOLUME II 
Second Impression 
Flat Worms. By F. W. Gamsin, M.Sc. Vict., Owens College.—Nemertines. 
By Miss L. SHELDON, Newnham College, Cambridge.—Thread-worms, etc. 
By A. E. Surptey, M.A., Fellow of Christ’s College, Cambridge.—Rotifers. 
By Marcus Harroe, M.A., Trinity College, Cambridge, D.Sc. Lond., Professor 
of Natural History in the Queen’s College, Cork.—Polychaet Worms. By 
W. BiraxtaNnp Benuam, D.Sc., Hon. M.A. Oxon., Professor of Biology in 
the University of Otago.—Earth-worms and Leeches. By F. E. Bepparp, 
M.A. Oxon., F.R.S., Prosector to the Zoological Society, London.—Gephyrea. 
etc. By A. E. Surpiry, M.A., Fellow of Christ’s Colleze, Cambridge. — 
Polyzoa. ByS. F. Harmer, Sc.D., F.R.S., Fellow of King’s College, Cambridge. 
SHELLS 
VOLUME III 
Molluscs and Brachiopods 
By the Rev. A. H. Cooks, M.A., A. E. SHrpiey, M.A., and F. R.C. Rexrp, M.A. 
TIMES.—“‘ There are very many, not only among educated people who take 
an interest in science, but even among specialists, who will welcome a work of 
reasonable compass and handy form containing a trustworthy treatment of the 
various departments of Natural History by men who are familiar with, and 
competent to deal with, the latest results of scientific research. Altogether, to 
judge from this first volume, the Cambridge Natural History promises to fulfil all 
the expectations that its prospectus holds out.” 
INSECTS AND CENTIPEDES 
VOLUME V 
Second Impression 
Peripatus. By ApAMSrEpewick, M.A., F.R.S.—Myriapods. By F. G. Srnciatr, 
M.A.—Insects. PartI. By Davin SHarp, M.A. Cantab., M.B. Edin., F.R.S. 
FIELD.—“ Although written for the student and the specialist, the book is not 
the less adapted to all intelligent readers who wish to make themselves thoroughly 
acquainted with the habits, structure, and the modern classification of the animals 
of which it treats. To such it cannot be recommended too strongly.” 
ENTOMOLOGIST’S MONTHLY MAGAZINE.—‘‘ We venture to think the 
work will be found indispensable to all who seek to extend their general knowledge 
beyond the narrowing influence of exclusive attention to certain orders or groups, 
and that it will take a high position in ‘The Cambridge Natural History’ series.” 
