210 OBITtTARY NOTICES. 



second master in Salisbury House School, Edinburgh, under Dr. 

 E. E. Humphreys. Here he remained only a few months, in 

 order that he might have sufficient leisure to prepare for the 

 Tyrwhitt Scholarship examination. Dr. Humphreys, who in 

 1852 became Head Master of Pate's Grammar School at 

 Cheltenham, was so favourably impressed by the scholarly ability 

 of Mr. Jeff ery, that, on his recommendation, his former colleague 

 was selected by the President and Pellows of Corpus Christi 

 College, Oxford, to be the second master in the school. Sixteen 

 years afterwards, on the resignation of the Rev. Dr. Hayman in 

 1868, Mr. Jeff ery was appointed to succeed to the vacant Head 

 Mastership, a position he retained with success until his retire- 

 ment on a pension in 1882. On leaving Cheltenham he took up 

 his residence at Falmouth, so that he might be able to have the 

 personal management of a considerable freehold property in that 

 town and neighbourhood, which he had inherited from his father. 

 Many of his pupils educated at Cheltenham, have expressed 

 their indebtedness to his careful teaching for their after success 

 in life, some of them having obtained high distinction at the 

 Universities, and in various competitive examinations for 

 admissions into the public service. 



It is, however, as a pure mathematician that Mr. JefPery's 

 name will be remembered in English science. At the meeting 

 of the British Association for the Advancement of Science, held 

 at Cheltenham in 1856, Mr. Jeff ery acted as one of the local 

 secretaries, and it has been truly said that the public discussions 

 on this occasion first developed his latent energies, and created 

 in his mind a strong inclination to enter into original mathema- 

 tical research. At this meeting he contributed two important 

 papers " On a Theorem in Combinations,'' and "On a Particular 

 Class of Congruences." With these papers he commenced the 

 long and continuous series of investigations in pure mathematics, 

 which have enriched the pages of the principal mathematical 

 journals from that year to the present time. His most important 

 memoirs have been on pure analysis and analytical geometry, 

 especially the classification of class-cubics, both in plane and 

 spherical geometry. A similar classification for class-quartics 

 have also occupied his attention. The following titles of a few 

 of his researches wiU give some idea of the general character of 



