WORKS ON BIOLOGY AND ZOOLOGY. 



MATERIALS FOR THE STUDY OF VARIATION. Treated with 

 especial regard to Discontinuity in the Origin of Species. By William Bateson, 

 M.A., Fellow of St. John's College, Cambridge. 8vo. 2is. net. 



AMPHIOXUS AND THE ANCESTRY OF THE VERTEBRATES. 

 By Arthur Willey, B.Sc, Tutor in Biology, Columbia College; Balfour 

 Student of the University of Cambridge. With a preface by Henry Fairfield 

 OsBORN. 8vo. los. 6d. net. 



THE MYOLOGY OF THE RAVEN {Corvus corax Sinuatus). A Guide 

 to the Study of the Muscular System in Birds. By R. W. Shufeldt, of the 

 Smithsonian Institute, Washington, U.S.A. With Illustrations. Svo. 

 13s. net. 



ORGANIC EVOLUTION AS THE RESULT OF THE INHERIT- 

 ANCE OF ACQUIRED CHARACTERS ACCORDING TO THE LAWS 

 OF ORGANIC GROWTH. By Dr. G. H. Theodor Eimer, Professor of 

 Zoology and Comparative Anatomy in Tubingen. Translated by J. T. 

 Cunningham, M.A., F.R.S.E., late Fellow of University College, Oxford. Svo. 

 I2S. 6d. 



FROM THE GREEKS TO DARWIN. An Outline of the Development 

 of the Evolution Idea. By Henry Fairfield Osborn, Sc.D., Da Costa 

 Professor of Biology in Columbia College, Curator in the American Museum of 

 Natural History. Svo. 9s. net. 



LESSONS IN ELEMENTARY BIOLOGY. By T. Jeffery Parker, 

 B.Sc, F. R. S., Professor of Biology in the University of Otago, New Zealand. 

 Illustrated. Second Edition. Crown Svo. los. 6d. 



KEY TO NORTH AMERICAN BIRDS. Containing a concise account 

 of every species of living and fossil bird at present known from the continent north 

 of the Mexican and United States boundary, inclusive of Greenland. Second 

 Edition, with which are incorporated General Ornithology — an outline of the 

 structure and classification of birds, and Field Ornithology — a manual of collect- 

 ing, preparing, and preserving birds. By Elliott Coues, M.A., M.D., Ph.D., 

 Member of the National Academy of Sciences. Profusely illustrated. Super 

 Royal Svo. 42s. 



MONOGRAPH OF THE BRITISH CICADA OR TETTIGIID^ 

 (Froghoppers and Grassflies). By George Bowdler Buckton, F.R.S., Corr. 

 Memb. Acad. Nat. Hist, of Philadelphia, Memb. de la Soc. Ent. de France. 

 Illustrated by more than 400 Coloured Drawings. Two Vols. Demy Svo. 

 33s. 6d. each net. Also in Eight Parts. 8s. each net. 



THE FOSSIL INSECTS OF NORTH AMERICA. With Notes on 

 some European Species. By Samuel H. Scudder. Vol. I. The Pretertiary 

 Insects. With 34 Plates. Vol. II. The Tertiary Insects. W^ith a Map and 28 

 Plates. 4to. Paper Boards. 90s. net. 



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