BOOKS RECEIVED 733 



The Principle of Relativity. By E. Cunningham, M.A., Fellow and Lecturer of 

 St. John's College, Cambridge. Cambridge : at the University Press, 191 4. 

 (Pp. xiv + 221.) Price gs. net. 



What is Adaptation ? By R. E. Lloyd, M.B., D.Sc. (Lond.), Major, Indian Medical 

 Service ; Professor of Biology, Medical College, Calcutta. Longmans, Green 

 & Co., 39, Paternoster Row, London ; Fourth Avenue and 30th Street, New 

 York; and Bombay, Calcutta, and Madras, 1914. (Pp. xi + no.) Price 

 2s. 6d. net. 



The Year-Book of the Scientific and Learned Societies of Great Britain and 

 Ireland. A Record of the Work done in Science, Literature, and Art during 

 the Session 1913-14, by numerous Societies and Government Institutions. 

 Compiled from Official Sources. Thirty-first Annual Issue. London : Charles 

 Griffin & Co., Ltd., Exeter Street, Strand, 1914. (Pp. vi + 376.) Price 7s. 6d. 

 net. 



The Mirror of Perception. By Leonard Hall, M.A. London and Redhill : Love 

 & Malcomson, Ltd., 1914. (Pp. 29.) 



The Indian Museum, 1814-1914. With n Illustrations. Calcutta: Published by 

 the Trustees of the Indian Museum and Printed at the Baptist Mission Press, 

 1914. (Pp. xi + 136 + lxxxi.) 



Algebraic Invariants. Mathematical Monographs, No. 14. Edited by Mans- 

 field Merriman and Robert S. Woodford. By Leonard Eugene Dickson, 

 Professor of Mathematics in the University of Chicago. First Edition. First 

 Thousand. New York : John Wiley & Sons. London : Chapman & Hall, 

 Ltd., 1914- (Pp. x + 100.) Price $s. 6d. net. 



A Catalogue of Current Mathematical Journals, etc., with the Names of the 

 Libraries in which they may be found. Compiled for the Mathematical 

 Association. London : G. Bell & Sons, Ltd., Portugal Street, Kingsway, and 

 Bombay, 191 3. (Pp. 39.) Price 2s. 6d. 



ANNOUNCEMENTS 

 MEETINGS OF SOCIETIES 



Royal Society. Ordinary Meetings, 4.30 p.m., April 22, 29, May 6, 13, 20, 

 June 3, 10, 17, 24. Election of Fellows, 4 p.m., May 6. 



Royal Meteorological Society. Meetings, 7.30 p.m., April 21 ; 4.30 p.m., 

 May 19, June 16. 



Institution of Mechanical Engineers. General Meeting, 8 p.m., 

 April 23. 



Chemical Society. Meetings, 8.30 p.m., May 6, 20, June 3, 17. 



Physical Society. Meetings, 5 p.m., April 23 ; 8 p.m., May 14 ; 5 p.m., 

 May 28 ; 8 p.m., June 11 ; 5 p.m., June 25. 



Optical Society. Meetings, 8 p.m., April 15, May 13, June 10. 



Zoological Society. Meetings, 5.30 p.m., April 13, 27, May 11, 25, June 8. 



Sociological Society. Meeting, 5.15 p.m., April 27. 

 48 



