SCIENTIFIC CATALOGUE. ' 



Todhunter continued. 



A HISTORY OF THE MATHEMATICAL THEORIES OF 

 ATTRACTION, and the Figure of the Earth, from the time of 

 Newton to that of Laplace. Two vols. 8vo. 245-. 

 "Probably no man in England is so qualified to do justice to the 

 theme as Mr. Todhunter. To all mathematicians these volumes 

 "will be detply interesting, and to all succeeding investigators^ of the 

 highest practical utility. " Athenaeum. 



AN ELEMENTARY TREATISE ON LAPLACE'S, LAME'S, 

 AND BESSEL'S FUNCTIONS. Crown 8vo. lor. 6d. 



Wilson (W. P.) A TREATISE ON DYNAMICS. By 

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 and Professor of Mathematics in Queen's College, Belfast. 8vo. 

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Wolstenholme. A BOOK OF MATHEMATICAL 



PROBLEMS, on Subjects included in the Cambridge Course. 

 By JOSEPH WOLSTENHOLME, Fellow of Christ's College, some 

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Young. SIMPLE PRACTICAL METHODS OF CALCU- 

 LATING STRAINS ON GIRDERS, ARCHES, AND 

 TRUSSES. With a Supplementary Essay on Economy in suspen- 

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