XXV 



elected a member of the London Mathematical Society in 1874, and a 

 Fellow of the Royal Society in 1875, member of the Sc. Soc. of 

 Brussels in 1878, Corr. Memb. of the R. Soc. of Sciences of Liege in 

 1887, member of the Soc. Math, de France, 1884, and LL.U. Hon. 

 Cans. R.U.I, in 1885. In 1873 Trinity College, Dublin, offered him 

 a Professorship of : ' Mathematics, but he reluctantly preferred to 

 further the advancement of Catholic education by working for the 

 Catholic University. In 1878 he was a Secretary of Section A of the 

 British Association meeting in Dublin, and in the same year the R.I. 

 Academy conferred on him a Cunningham Gold Medal. 



In 1881 he commenced a series of mathematical class books for 

 University and college students, which have acquired a -deservedly 

 high reputation, and some of which have been translated. From 1862 

 to 1868 he was one of the- editors of the 'Oxford, Cambridge, and 

 Dublin Messenger of Mathematics,' and for several years was- Dublin 

 correspondent for the ' Jahrbuch iiber die Fortschritte der Mathe- 

 matik.' The Norwegian Government presented him, in.' 1 1881, with 

 the works of Abel. He carried on an extensive correspondence with 

 most of the leading . European mathematicians, all of whom held 

 Casey's work in high esteem. 



His work was almost wholly confined to plane geometry, in which 

 his papers have earned -for him an established reputation. Professor 

 Cremona has well described them as exhibiting the great "elegance 

 and ability with which he treated the most difficult and interesting 

 questions. John Casej will ever be remembered as one of the very 

 small band of eminent mathematicians who, self-taught, raised 

 themselves from the -grade of elementary teacher to University 

 Professor. 



In the Royal Society's Catalogue of Scientific Papers (1800 1883) 

 there are eighteen titles under Professor Casey's name, -their dates 

 ranging from 1861 to 1880. 



G..F. F. G. 



