CONTENTS. 



PAGE 



A self-recording electrometer for Atmospheric Electricity. By W. A. 

 Douglas Ritdgb, M.A., St John's College . . . 



On the expression of a number in the form ax^-\-hy^-^cz--\-dv?. By 

 S. Ramanujan, B.A., Trinity College. (Communicated by Mr 

 G. H. Hardy) . . . . . . . . . • H j 



An Axiom in Symbolic Logic. By C. E. Van Hokn, M.A. (Com- 

 municated by Mr G. H. Hardy) 22 



A Reduction in the number of the Primitive Propositions of Logic. By 

 J. G. P. NicoD, Trinity College. (Communicated by Mr G. H. 

 Hardy) . 32 " 



Bessel fuiictions of eqiial order and argument. By G. N. Watson, M.A., 



Trinity College . . . 42 ' 



The limits of applicability of the Principle of Stationary Phase. By 



G. N. Watson, M.A., Trinity College . . . . . . 49 



On the Fionctions of the Mouth-Parts of the Common Prawn. By L. A. 



BoRRADAiLE, M.A., Selwyn College . . . . . . .56 



