CONTENTS. 



PART I. 



Page 



N°. I. On the Dynamical Theory of Diffraction. By G. G. Stokes, M.A. Fellow 

 of Pembroke College, and Lucasian Professor of Mathematics in the 

 University of Cambridge ] 



II. Criticism of Aristotle's Account of Induction. By W. Whewell, D.D. 



Master of Trinity College, Cambridge 63 



III. On Impact of Elastic Beams. By Homehsham Cox, Esq. B.A. of Jesus 



College 73 



IV. On the Symbols of Logic, the Theory of the Syllogism, and in particular 



of the Copula, and the application of the Theory of Probabilities to some 

 questions of Evidence. By Augustus De Morgan, Sec. R.A.S. of 

 Trinity College, Cambridge, Professor of Mathematics in University 

 College, London 79 



V. Mathematical Exposition of some Doctrines of Political Economy. Second 



Memoir. By W. Whbweu, D.D. Master of Trinity College, Cambridge 128 



VI. Second Memoir on the Intrinsic Equation of a Curve, and its Application. 



By W. Whewell, D.D. Master of Trinity College, Cambridge 150 



VII. On the Knowledge of Body and Space. By H. Wedgwood, Esq. 



Christ's College, Cambridge 157 



VIII. On the numerical Calculation of a Class of Definite Integrals and Infinite 



Series. By G. G. Stokes, M.A. Fellow of Pembroke College, and 

 Lucasian Professor of Mathematics in the University of Cambridge. . 166 



