Practical Plant Physiology 



By Frederick Keeele, Sc.D., Sherardian Professor of Botany, Oxford 

 University, assisted by M.C. Rayner, B.Sc, formerly Lecturer in Botany 

 at University College, Reading. With numerous Illustrations, Second 

 Edition. Crown 8vo. 4^. (>d. 



The book covers the necessary ground for a biological course in nature study 

 in the higher classes in schools, and for the first-year class in the University. The 

 numerous illustrations have in almost every case been made specially for this work. 



London Catalogue of British Plants 



Part I, containing the British Phjenogamia, Filices, Equisetacea;, Lyco- 

 podiacea?, .Selaginellacex, Marsileacece, and Characei^. 



Tenth Edition, revised. Demy 8vo, is. iret. 



An Introduction to the Study of the Com= 

 parative Anatomy of Animals 



By Gilbert C. Bourne, M.A., D.Sc, Linacre Professor of Comparative 

 Anatomy, Oxford. 2 vols., Crown 8vo. Illustrated, 75. (sd. each. 



Vol. I. Animal Organisation. The Protozoa and Ccelenterata. 

 SiNTH Edition. 



Vol. II. The Ccelomate Metazoa. Ninth Edition. 



Nature: " This admirable little book is designed to meet the requireinents of 

 the elementary examinations of the leading Universities of Great Britain." 



Biology 



By G. N. Calkins, Ph.iJ., Professor of Protozoology in Columbia University. 

 Demy 8vo. Io.f. td. net. 



Nature: "This introduction to general biology has a pleasing freshness, a 

 quality difficult to attain in these days of many books. It considers general 

 biology as having to do with fundamental facts and principles. Prof. Calkins' 

 treatment is beautifully clear throughout, and he drives his nails home. ... A 

 work of great excellence, which is sure to be found very useful.'' 



A Manual of Zoology 



By Richard Hertwig, Professor of Zoology in the University at Munich. 

 From the Fifth German Edition. Translated and Edited by J. y. I-Cingsley, 

 Professor of Zoology in Tuft's College. 8vo. Profusely Illustrated. I2j'. Orf. net. 



A Textbook of Vertebrate Zoology 



By J. S. KiNGsi.EY, Professor of Zoology in Tuft's College. With 37S 

 Diagrams. S\o. 12s net. 



R. L. {in " Anliti-f") : "The work is thoroughly comprehensive in its scope ; and 

 is, in fact, for the most part exactly what such a treatise should be. We have no 

 hesitation in saying that Prof. Kingsley's little volume is worthy of a hearty w'el- 

 corae on this side of tlie Atlantic on the part of both teachers and pupils.'" 



LONnON: G. BELL AND SONS LTD. 



YORK HOUSE, PORTUGAL STREET, \V.C.2 



