February, 1907.] 



KNOWLEDGE & SCIENTIFIC NEWS. 



111. 



Just Out. With Portraits and other Illustrations. Large crown 8vo. 7s. 6d. net. 



RECENT ADVANCES IN THE STUDY OF 

 VARIATION, HEREDITY & EVOLUTION. 



By ROBERT K. UOCK, IMT.A., 



FELLOW OF GONVILLE AND CAIUS COLLEGE. CAMBRIDGE. 



The past few years have been marked by advances in Biology scarcely less extensive than those made by Physical Science within 

 the same period : and amongst all the branches of the study of living things none have shown greater progress than that of the 

 investigation of heredity and of the kindred problems which bear upon the great question of Organic Evolution. Coming at a most 

 opportune moment, the rediscovery of the work of Mendel has supplied the key to problems which were being approached by several 

 converging lines of enquiry, and is leading to a remarkable simplification of ideas as to the method of hereditary transmission of definite 

 features in human beings and in other living things. To designate the science which deals with the problems of heredity and variation 

 by the new methods now available the term Genetics has been proposed. The object of the present book is to describe the connection 

 between the new science of Genetics and those ideas which have long been summed up under the e.xpression Darwinism, as well as to 

 point out the practical importarce and theoretical interest of these subjects. 



SCIENCE PROGRESS IN THE TWENTIETH CENTURY. 



A QUARTERLY JOURNAL OF SCIENTIFIC THOUGHT. 

 Edited by N. H. ALCOCK, M.D., and W. Q. FREEMAN, B.Sc, F.L.S. 

 No 3. Vol. I. JANUARY. 5s. net. 

 CONTENTS :- 



[Just Out. 



The Economics of University Education. Sir .\rthcr 

 RiCKER. D.Sc. LL.D-, F.R.S. 



Some Recent Developments of the Electrolytic Dissocia- 

 tion Theory. George Senter, Ph.D. 



The Decadence of Ammonites. Felix Oswald, D.Sc. 

 (Lond ) Illustrated. 



The Rusting of Iron. \V. fi. Davis. Illustrated 



Some Aspects of " Double Fertilization " in Plants. Ethel 

 N. Thomas, D.Sc. 



Recent Work on Protein=HydroIysis. J. Reynolds Green-, 

 Sc D., F.R.S. 



A Year's Work in Vertebrate Palaeontology. R. Lvdekker. 



The Behaviour of Over-Strained Materials. .\. O Rankine, 



B.Sc. Illustrated. 

 The Principles of Seed-Testing. T. Johnson. D.Sc. 

 The Chemistry of Indiarubber. Samuel S. Pickles, M.Sc. 

 Marcel Nencki, 1847=1891. S. B. Schryver, D.Sc, Ph.D. 

 Recent Advance in the Study of Fungi. .\. Lorrain 



Smith, F.L.S. 

 The Danger of Flies. Arthlr E. Shipley, M .\. D.Sc, 



(Princeton^ F.R.S. 

 The Reform of the Medical Curriculum— A Problem in 



Technical Education. Henry E. .•\r.mstrong. 



JOHN MURRAY, ALBEMARLE STREET, W. 



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