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the Falmouth Grammar School. On leaving- this school, in 1840, he 

 exhibited undoubted signs of considerable mathematical and classical 

 ability so much so that he offered himself as a tutor in a private 

 gentleman's family. The writer of this notice has seen a copy of 

 his letter containing a list of the subjects which he considered him- 

 self competent to teach, and from it we may gather that he was 

 really an intelligent youth with more than usual precocity. Fortu- 

 nately for himself, he was, at the advice of some friends, sent in 1841 

 to the Grammar School at Sedbergh, Yorkshire, where he was 

 trained by the Rev. J. H. Evans, a late Fellow of St. John's College, 

 Cambridge. Here he remained until 1845. In October of that 

 year he entered as an undergraduate at St. John's College, but soon 

 after migrated to St. Catharine's College, graduating as B.A. in 

 1849 in the Mathematical Tripos as Sixth Wrangler, and in the Clas- 

 sical Tripos in the Second Class. He proceeded to the degree of M.A. 

 in 1852, and in that year he was adjudged the special distinction of 

 bracketed first Tyrwhitt Hebrew Scholar. 



Soon after taking his degree, Mr. Jeffery accepted the post of 

 Lecturer in the College of Civil Engineers at Putney, and in 1852 he 

 was selected by the President and Fellows of Corpus Christi College, 

 Oxford, to fill the office of Second Master of Pate's Grammar School, 

 at Cheltenham. Sixteen years after, on the resignation of the Rev. 

 Dr. Hayman, in 1868, he was appointed to succeed to the vacant 

 Headmastersbip, an office which he retained with success until his 

 retirement in 1882. Many of his pupils have acknowledged their 

 indebtedness to Mr. Jeffery for their general success in life, some 

 of whom have attained high distinction at the Universities, and in 

 various competitive examinations for admission into the public 

 service. 



Although, while at the Cheltenham Grammar School, Mr. Jeffery's 

 official time was more especially devoted to the classical department, 

 it is as a pure mathematician that his name will be most remembered. 

 Shortly after he permanently settled in Cheltenham he commenced 

 the long and continuous series of investigations in pure mathematics 

 which have enriched the pages of the ' Quarterly Journal of Pure 

 and Applied Mathematics,' the ' Proceedings of the London Mathe- 

 matical Society,' the ' Reports of the British Association,' and other 

 scientific journals. His most important papers have been on pure 

 analysis and analytical geometry, especially on the classification of 

 class-cubics, both in plane and spherical geometry. Instalments of 

 the similar classification for class-quartics have also been published. 

 He had been for some time engaged on the continuation of this work. 

 The titles of a few of his numerous papers will give a sufficient indi- 

 cation of the general character of his investigations : "Two Theo- 

 rems in Permutations and Combinations, and a Theorem in Con- 



