VOL. I. PROTOZOA, etc. 



Protozoa. By Marcus Hartog, M.A., Trinity College, Cambridge ; D.Sc. 



Lond. ; Professor of Natural History in Queen's College, Cork. 

 Porifera (Sponges). By Miss Igerna B. J. Sollas, B.Sc Lond. ; 



Lecturer on Zoology at Newnham College, Cambridge. 



Coelenterata and Ctenophora. By s J. Hickson, m.a. (D.Sc Lond.), 



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. (D.Sc. Lond.), F.R.S., 



formerly Fellow of St. John's College, Cambridge, and Professor of Zoology 



in McGill University, Montreal ; Chief Assistant and Professor of Zoology 



in the Imperial College of Science and Technology. 



NA TURE. — " Taken in conjunction with the earHer pubUshed vohmies, the work seems 



to fulfil the piupose of providing an intelligible and adequate survey of the entire animal 



kingdom without giving undue prominence to particular groups. . . . The illustrations are 



excellent." 



FIELD. — " The book can be in the strongest manner recommended to those for whose 



benefit it has been written. We know of no work from which a more truly scientific account 



of the Protozoa, Echinodermata, and other lower forms of animal life could be gained." 



OUTLOOK. — " There is much valuable matter in these well-planned sections which will 



render the volume, like the others which have preceded it, a necessary book of reference in 



every well-equipped library." 



VOL. IL WORMS, LEECHES, etc. 



Flatworms and Mesozoa. By F. W. Gamble, D.Sc. Vict., F.R.S., 



Lecturer in Zoology in the Victoria University of Manchester. 

 Nemertines. By Miss L. Sheldon, Newnham College, Cambridge. 

 Threadworms and Sagitta. By A. E. Shipley, M.A., Hon. Sc.D. 

 Princeton, F.R.S., Fellow and Tutor of Christ's College, Cambridge ; 

 Reader in Zoology in the University. 

 Rotifers. By Marcus Hartog, M.A., Trinity College, Cambridge ; 



D.Sc. Lond. ; Professor of Natural History in Queen's College, Cork. 

 Polychaet Worms. By W. Blaxland Benham, D.Sc. Lond. (Hon. 



M.A. O.xon.), F.R.S. ; Professor of Biology in the University of Otago. 

 Earthworms and Leeches. By Frank Evers Beddard, M.A. Oxon., 



F.R..S. ; Prosector to the Zoological Society, London. 

 Gephyrea and Phoronis. By A. E. Shipley, M.A., Hon. Sc.D. Prince- 

 ton, F.R.S., Fellow and Tutor of Christ's College, Cambridge ; Reader in 

 Zoology in the University. 

 Polyzoa. By S. F. HvVRMER, Sc.D., F.R.S. , Fellow of King's College, 

 Cambridge ; formerly Superintendent of the University Museum of 

 Zoology ; Keeper of the Department of Zoology in the British Museum 

 (Natural History). 

 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 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 com- 

 prehensive 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." 



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