CAMBRIDGE UNIVERSITY PRESS 



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SCIENCE AND THE NATION 



Essays by Cambridge Graduates 



with an Introduction by the 



Right Hon. Lord Moulton, K.C.B., F.R.S. 



Edited by A. C. SEWARD, F.R.S., Master of Downing College, Cambridge. 



It is the aim of the authors of these essays to present the results of 

 experience in scientific investigation, to illustrate by concrete examples the 

 sources of progress in a few departments of knowledge and so make clear 

 to the layman the position of research as a factor in national prosperity. 

 Each Essay has been written by some one who, by lifelong study and practice 

 of the Branch of Science to which it relates, has qualified himself to give a 

 just and authoritative description of the work that has already been done as 

 well as of the bearing of that work on the present and its promise for the 

 future. 



CONTENTS 



Introduction. By the Right Hon. Lord Moulton, K.C.B., F.R.S. 



The National Importance of Chemistry. By W. J. Pope, F.R.S. 



Physical Research and the way of its Application. By W. H. Bragg, 

 F.R.S. 



The Modern Science of Metals, Pure and Applied. By W. Rosenhain, 



F.R.S. 

 Mathematics in relation to Pure and Applied Science. By E. W. 



HoBSON, F.R.S. 



The Science of Botany and the Art of Intensive Cultivation. By 

 F. W. Keeble, F.R.S. 



Science in Forestry. By W. Dawson, M.A. 



Systematized Plant-breeding. By R. H. Biffen, F.R.S. 



An Agricultural War Problem. By T. B. Wood, M.A. 



Geology as an Economic Science. By Herbert H. Thomas, Sc.D. 



Medicine and Experimental Science. By F. Gowland Hopkins, F.R.S. 



The " Specific Treatment " of Disease. By G. H. F. Nuttall, F.R.S. 



Flies and Disease. By G. S. Graham-Smith, M.D. 



The Government of Subject Peoples. By W. H. R. Rivers, F.R.S. 



" In essay after essay — from the impressive opening one on ' The National Importance of 

 Chemistry' to that on 'The Government of Subject Peoples,' which concludes the series — we 

 have a recital of the achievements of science in its various iDrauches, and it is brought home 

 to us in the most convincing manner how the great discoveries and inventions — coal-tar dyes, 

 X-rays, wireless telegraphy, the production of a rust-resisting wheat of large yielding capacity, 

 the modern treatment of disease — have all been rendered possible and are all the outcome of a 

 'steady pursuit of knowledge by rational and intelligent research'." — New Statesman 



Cambridge University Press, Fetter Lane, London, E.G. 4 



C. F. Clay, Manager 



