688 SCIENCE PROGRESS 



War and Civilisation. A Lecture delivered at the John Rylands Library on 

 February 13, 191 8. By W. J. Perry, B.A. Reprinted from The Bulletin 

 of tke John Rylands Library, Vol. IV., Nos. 3-4, February-July 1918. 

 Manchester : at the University Press. London : Longmans, Green & Co. 

 1917-18. (Pp. 27.) Price is. 6d. net. 



The Adventure of Life. By Robert W. Mackenna, M.A., M.D. London : John 

 Murray, Albemarle Street, W., 1919. (Pp. xiii + 306.) Price 6s. net. 



ANNOUNCEMENT 



"THE King has graciously consented to act as President of the British Scientific 

 Products Exhibition, 1919, which will be held at the Central Hall, Westminster, 

 during the month of July. The President of the Exhibition is the Marquis of 

 Crewe, K.G., and Prof. R. A. Gregory is Chairman of the Organising Committee. 



The British Science Guild has been encouraged to organise this Exhibition by 

 the success which attended that held at King's College last summer and the more 

 recent Exhibition at Manchester. Now that many inventions can be shown 

 which could not be put before the public during the war, there is every prospect 

 that this year's Exhibition will be even more successful than its predecessors. 



The Exhibition will include sections dealing with Chemistry, Metallurgy, 

 Physics, Agriculture and Foods, Mechanical and Electrical Engineering, 

 Education, Paper, Illustration and Typography, Medicine and Surgery, Fuels, 

 Aircraft and Textiles. Firms desirous of exhibiting are invited to communicate 

 with the Organising Secretary, Mr. F. S. Spiers, 82, Victoria Street, London, S.W.I. 



Printed by Hazell, Watson & Viney, Let., London and Aylesbury, England. 



