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. Surpiey, 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. 
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. 
NOW READY. VOLUME II. 
WORMS, LEECHES, ETC. 
Flatworms. By F. W. GAmBLe, M.Sc. Vict., Owens College. Nemertines. By 
Miss L. SHetpon, Newnham College, Cambridge.—Thread-worms, etc. By A. 
E. Surptey, M.A., Fellow of Christ’s College, Cambridge.—Rotifers. By 
Marcus Harroc, M.A. Trinity College, Cambridge, D.Se. Lond., Professor 
of Natural History in the Queen’s College, Cork.—Polychaet Worms.—By W. 
BLaxtanD Brenuam, D.Sc. Lond., Hon. M.A. Oxon., Aldrichian Demonstrator 
of Comparative Anatomy in the University of Oxford.—Earthworms and 
Leeches. By F. E. Brepparp, M.A. Oxon., I'.1.S., Prosector to the Zoological 
Society, London.—Gephyrea, etc. By A. E. Surpiey, M.A., Fellow of Christ’s 
College, Cambridge.—Polyzoa. By 8. F. Harmer, M.A., Fellow of King’s 
College, Cambridge. 
CAMBRIDGE -REVIEW.—“‘ Several of the groups treated of in this volume are unknown by 
sight even to the general reader, and possess no popular name whatsoever; and as only a few in- 
significant 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 ofa 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 confidence that the same amount of 
information, within the-same compass, is to be had in no other zoological work.” 
GUARDIAN.—‘ Taken as a whole, the articlesare by far the best that have been written on 
their respective subjects, and the present volume will have a high value for zoological students 
besides its attractions for the general reader.” 
NATURAL SCIENCE.—‘ This second volume of the Cambridge Natural History is certain to 
prove a most welcome addition to English Zoological literature. It deals with a series of animal 
vroups, all deeply interesting to the specialist in morphology ; some important from their economic 
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.” 
MACMILLAN AND CO., Lrp., LONDON. 
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