140 Obituary— Arthur Roope mint, M.A., F.L.S., F.G.8. 



Professor G. Cesaro : On a Numerical Relation of the Sum of the 

 Symmetry-axes situated in the Symmetry-planes of a Polyhedron. 

 If iV. A n , P . A p , Q . A a . . . are the axes of symmetry lying in the 

 planes of symmetry, then 4 {Nn (n — \)-\-Pp (p—l)+Qq (q — 1) + 

 . . . } -\- 1 = C, and the number of planes of symmetry is given by 



2 



OEITITABT. 



ARTHUR ROOPE HUNT. M.A. (Cantab.), F.L.S.. F.G.S. 



Born January 8, 1843. Died December 19, 1914. 



With the close of the past year another of our old friends has been 

 taken from us, and one who for a quarter of a century was not only 

 a friend, but a frequent contributor to the pages of the Geological 

 Magazine. 



Arthur Roope Hunt was descended from an old Devonshire family, 

 who had resided for generations in or near Dartmouth. He was 

 the son of Mr. Arthur Hunt, partner in the firm of Messrs. Hunt, 

 Poope, & Teage, wine exporters of Oporto, and there, in 1843, young 

 Hunt was born. But his residence in Portugal was only of brief 

 duration. "When only 8 or 9 years of age he left with his parents 

 hurriedly in an English war vessel, as the lives of the British residents 

 in Oporto were endangered by a revolution. 



His family settled in Torquay in 1852. Here he commenced his 

 English education under the tuition of the Rev. Townsend Warner, 

 whose pupils included the present Lord Rayleigh, one of Hunt's 

 school, college, and lifelong friends. Another youthful companion, 

 only two years his senior, was afterwards to become Field-Marshal 

 Lord Grenfell. 



Those early years must have been very happy ones, for although 

 always a delicate lad, Arthur Hunt enjoyed abundant outdoor 

 pleasures and had many friends willing to share his society and 

 encourage his pursuits. 



It must be borne in mind that Torquay had been, from an early date, 

 a very active centre of scientific life in all its diversified branches. 

 The well-known Torquay Natural History Society, which was founded 

 by William Pengelly and others, now in its seventieth year, afforded an 

 admirable focus to a very wide circle of men of leisure and education 

 resident in South Devon. In addition to Mr. Pengelly, Hunt's earliest 

 instructor in geology, may be mentioned the naturalist, Mr. Philip 

 Henry Gosse, the Rev. T. R. R. Stebbing, the Rev. G. E. Whidborne, 

 Mr. John Edward Lee, Mr. E. B. Tawney, Mr. Daniel Pidgeon, 

 Mr. R. H. Worth, and in later years Mr. Arthur Champernowne, 

 Mr. W. A. E. Ussher, Mr. A. J. Jukes-Browne, and Mr. Alexander 

 Somervail, to all of whom Hunt was intimately known. 



Mr. Hunt displayed much knowledge of engineering, and had his 

 constitution been more robust he might have carried on much more 

 elaborate investigations ; but his health forbade it, and he devoted 

 himself to open-air pursuits, chiefly to geology, marine physics, 

 and zoology. 



