THE CAMBRIDGE NATURAL HISTORY 



Edited by S. F. HARMEK, 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.E.S., Fellow of Christ's 

 College, Cambridge, University Lecturer on the Morphology 

 of Invertebrates. 



To be completed in Ten Volumes. Svo. 1 7s. 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. GAMBLE, M.Sc. Viet., Owens College. Nemertines. 

 By Miss L. SHELDON, Newnhain College, Cambridge. Thread-worms, etc. 

 By A. E. SHIPLEY, M.A., F.R.S., Fellow of Christ's College, Cambridge. 

 Rotifers By MARCUS HARTOG, M.A., Trinity College, Cambridge, D.Sc. Loud.. 

 Professor of Natural History in the Queen's College, Cork. Polychaet Worms. 

 By W. BLAXLAND BENHAM, D.Sc., Hon. M.A. Oxon., Professor of Biology in the 

 University of Otago. Earth-worms and Leeches. By F. E. BEDDARD, M.A. 

 Oxon., F.R.S., Prosector to the Zoological Society, London. Gephyrea, etc. 

 By A. E. SHIPLEY, M.A., F.R.S., Fellow of Christ's College, Cambridge. 

 Polyzoa. By S. F. HARMEH, 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 general 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 confidence that the same amount of information, within the same compass, 

 is to be had in no other zoological work." 



XA TU11AL 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 groups, all deeply interesting to the specialist in 

 morphology ; some important from their economic relations to other living i liings. 

 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." 



