THE CAMBRIDGE NATURAL HISTORY 
Edited by S. F. Harmer, 8c.D., F.R.S., Fellow of King’s College, 
Cambridge, Superintendent of the University Museum of 
Zoology ; and A. E. Suipuey, M.A., F.R.S., Fellow of Christ’s 
College, Cambridge, University Lecturer on the Morphology 
Od 
of Invertebrates. 
To be completed in Ten Volumes. Svo. 17s. net each. 
Intended in all respects to be a Standard Natural History accurate 
enough to be of use to the Student, and at the same time popular enough for 
the general reader who desires trustworthy information as to the structure 
and habits of all members of the Animal Kingdom, from the Protozoa to the 
Mammals. The Volumes are fully illustrated by original figures drawn 
where possible from nature. When complete the Series is one which should 
be indispensable in all Libraries, whether public or private. 
WORMS, LEECHES, etc. 
VOLUME II. 
Flat Worms. By F. W. Gamer, M.Se. Vict., Owens College.—Nemertines. 
By Miss L. SHeLpon, Newnham College, Cambridge.—Thread-worms, etc. 
By A. E. Surety, M.A., F.R.S., Fellow of Christ’s College, Cambridge.— 
Rotifers By Marcus Hartoe, M.A., Trinity College, Cambridge, D.Sc. Lond., 
Professor of Natural History in the Queen’s College, Cork.—Polychaet Worms. 
By W. Buaxtanp Brenuam, D.Sc.,Hon. M.A. Oxon., Professor of Biology in the 
University of Otago.—Earth-worms and Leeches. By F. E. Bepparon, M.A. 
Oxon., F.R.S., Prosector to the Zoological Society, London.—Gephyrea, etc. 
By A. E. Surptry, M.A., F.R.S., Fellow of Christ’s College, Cambridge.— 
Polyzoa. By S. F. Harmen, Sc.D., F.R.S., Fellow of King’s College, Cambridge. 
CAMBRIDGE REVIEW.—< Several of the groups treated of in this volume are 
unknown by sight even, to the genera] reader, and possess no popular name what- 
soever ; and as only a few insignificant details are known of the habits of the 
animals composing them, their treatment in the volume before us has necessarily 
been to a large extent anatomical. This circumstance renders the book of especial 
value to students, more particularly as in some cases the articles on the groups in 
question are the first comprehensive ones dealing with their respective subjects. . . . 
Most of the articles are of a very high order of merit—taken as a whole, it may be 
said that they are by far the best which have as yet been published. . . . We may 
say with contidence that the same amount of information, within the same compass, 
is to be had in no other zoological work.” 
NATURAL SCIENCE.—‘‘This second volume of tlhe Cambridge Natural History 
is certain to prove a most welcome addition to English Zoological literature. It 
deals with a series of animal groups, all deeply interesting to the specialist in 
morphology ; some important from their econvmic relations to other living things, 
others in their life-histories rivalling the marvels of fairy-tales. And the style in 
which they are here treated is also interesting ; history and the early observations 
of the older writers lend their charm ; accounts of habits and mode of occurrence, 
of life, in a word, from the cradle to the grave, are given in ample detail, 
accompanied by full references to modern and current literature. The whole is 
admirably illustrated.” 
