51 MATHEMATICS. 



5101 Berkeley, H. Mysticism in modern mathematics. 



Lond. 1910. 



'i$ ; 57 Boole, M. E. Mrs. Mathematical psychology of 

 Gratry and Boole. Lond. 1897. 



51 01 Couturat, L. Les Principes des mathematiques. 



Paris 1905. 



5101 Jaeger, F. M. Lectures on the principle of symmetry. 



Lond. [1917]. 

 5101 Poincare, H. Science and hypothesis. Lond. 1905. 



5101 Science et m6thode. Paris 1908. 



5101 La Valeur de la science. Paris [1905]. 



5101 Richardson, R. P. and Landis, E. H. Fundamental 

 conceptions of modern mathematics. Chicago 1916. 



5101 Numbers, variables, and Mr. Eussell's philosophy. 



Chicago 1916. 



5101 Russell, B. A. W. Introduction to mathematical philo- 

 sophy. Lond. 1919. 



5101 Principles of mathematics. Vol. IT> 



Camb. 1903-> 



5101 Whitehead, A. N. and Russell, B. Principia mathe- 

 matica. Vol. l-> Camb. 1910-> 



5101 Young, J. W. Fundamental concepts of algebra and 

 geometry. New York 1911. 



51014 Andre, D. Des notations mathematiques. Paris 1909. 



5102 Bouasse, H. Cours de mathematiques gene" rales. 



Paris [1911]. 



5102 Encyclopaedic der mathematischen Wissenschaften. 



Vol. l-> Leip. 1898 



40 



