BOOKS RECEIVED 



{Publishers are requested to notify prices) 



Frequency Curves and Correlation. Addendum, with Diagram and Errata. By 

 W. Palin Elderton, F.I. A. London: Printed for the Institute of Actuaries 

 by Charles and Edwin Layton, 1917. (Pp. 22.) Price is. 6d. net. 



This pamphlet is published with the idea of bringing up to date the author's 

 book on Frequency Curves and Correlation, which was published in 1906. 

 There are three sections, respectively on " Uncommon Frequency Types," 

 " Calculation of the Co-efficient of Correlation in a Two-row Table," and 

 "The Correlation Ratio," and there is also a list of Errata in the book 

 mentioned. It is to be noticed that special attention is given to recent work 

 by Prof. Karl Pearson. 



Analytic Geometry and Calculus. By Frederick S. Woods and Frederick H. 

 Bailey, Professor of Mathematics in the Massachusetts Institute of Tech- 

 nology. London: Ginn & Co., and Boston, New York, and Chicago. 

 (Pp. xi + 516.) Price 12s. 6d. net. 



Theory of Maxima and Minima. By Harris Hancock, Ph.D. (Berlin), D.Sc. 

 (Paris), Professor of Mathematics in the University of Cincinnati. London : 

 Ginn & Co., and Boston, New York, and Chicago. (Pp. xiv + 193.) 

 Price 10s. 6d. net. 



Les Sciences Mathematiques en France depuis un Demi-Siecle. By Emile 

 Picard, Secretaire Perpetuel de PAcademie des Sciences. Paris : Gauthier- 

 Villars et Cie., Editeurs, Libraires du Bureau des Longitudes, de l'Ecole 

 Polytechnique, 55, Quai des Grands-Augustins. (Pp. 25.) 



Mathematics for Engineers. Part I. Including Elementary and Higher Algebra, 

 Mensuration and Graphs, and Plane Trigonometry. By W. N. Rose, B.Sc, 

 Eng. (Lond.), Lecturer in Engineering Mathematics at the University of 

 London, Goldsmiths' College. London: Chapman & Hall, 11, Henrietta 

 Street, W.C.2, 1918. (Pp. xiv + 510.) Price 8s. 6d. net. 



Recent Progress in Magneto-Optics. Indian Science Congress (Section— Physics 

 and Mathematics). Presidential Address by Dr. Wali Mohammad, M.A. 

 (Punjab), B.A. (Cantab.), Ph.D. (Gottingen), Fellow of, the Allahabad Univer- 

 sity, Professor of Physics, Aligarh. Delivered at Lahore, January 1918. 

 Printed by M. Muqtada Khan Shirwani, at the Institute Press, Aligarh. 

 (Pp. 20.) 



Experimental Inorganic Chemistry. By Alexander Smith, Professor of Chemistry, 

 and Head of the Department, Columbia University. Sixth Edition. London : 

 G. Bell & Sons, 1918. (Pp. vii + 171.) Price 3.?. 6d. net. 



Introduction to Inorganic Chemistry. By Alexander Smith, Professor of 

 Chemistry and Administration Head of the Department, Columbia Univer- 



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