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CTIVITY. Today, every walk in life has been divided and 

 sub-divided. Oxford books reflect this progress both in their 

 wide variety and ever increasing number. 



qA selection of those recently issued. 



SPACE AND TIME IN CONTEMPORARY PHYSICS 



By Moritz Schlick ^Het $2.50 



An adequate, yet clear account of Einstein's epoch-making theories of relativity. 



ON GRAVITATION AND RELATIVITY 



By Ralph Allen Sampson 90c 



The Halley lecture delivered by the Astronomer Royal for Scodand. 



SOME FAMOUS PROBLEMS OF THE THEORY OF 

 NUMBERS 



By G. H. Hardy $1.15 



Inaugural lecture by the Savilian Professor of Geometry at Oxford. 



TUTORS UNTO CHRIST 



By Alfred E. Garvie Tsfet $2.25 



An interesting introduction to the study of religions. 



FUNGAL DISEASES OF THE COMMON LARCH 



'By W. E. Hiley $5.65 



An elaborate investigation into larch canker with descriptions of all other known 

 diseases of the larch and numerous fine illustrations. 



THE GEOGRAPHY OF PLANTS 



By M. E. Hardy $3.00 



More advanced than the author's earlier work discussing fully the conditions in which 

 plants flourish and their distribution throughout the earth. 



SCHOOLS OF GAUL 



By Theodore Haarhoff $5.65 



An important study of Pagan and Christian education in the last century of the 

 Western empire. 



THE ELEMENTS OF DESCRIPTIVE ASTRONOMY 



By E. O. Tancock $1.35 



A simple and attractive description of the heavens calculated to arouse the interest 

 of those who know little or nothing of the subject. 



RECENT DEVELOPMENTS IN EUROPEAN THOUGHT 

 Edited by F. S. Marvin ^t $3.00 



Twelve essays by noted scholars summarizing the work of the leading European 

 thinkers in the last fifty years. 



DEVELOPMENT OF THE ATOMIC THEORY 



By A. N. Meldrum 70c 



A brief historical sketch attributing to William Higgins, not John Dalton as 

 generally supposed, priority in the discovery of the theory. 



cAt all booksellers or from the publishers. 



OXFORD UNIVERSITY PRESS ^American 'Branch 



35 WEST 32nd STREET, NEW YORK 



Q/& standard of textuaC exceffence. " 





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