408 OBITUAB.Y NOTICE. 



to repurchase the land, etc., on which his ancestors lived for 300 

 years." {Calendar of MS S., House of Lords). Dr. Jago always 

 referred to this John Jago with a considerable family interest, as 

 he was considered to have been of some note in his day as a 

 strict Parliamentarian. He was appointed a Commissioner of 

 Sequestration by Oliver Cromwell, and died at Truthan in 1652. 



When young Jago was in his eighth year, his father went 

 to reside at Falmouth, which gave him many advantages. 

 Though of such tender years, the youth was sent to the Falmouth 

 classical and mathematical school, where he received his pre- 

 paratory education. He remained a pupil in this school until 

 about 1833, but as it was the intention of his father to send him 

 to Cambridge, he had afterwards the advantage of receiving 

 some advanced lessons in classics and mathematics from private 

 tutors. Dr. Jago retained an interest in the Falmouth school to 

 the end of his life. 



In 1835, Dr. Jago entered St. John's College, Cambridge, 

 as a pensioner, from which he graduated B.A. in the mathe- 

 matical tripos of 1839 as 32nd wrangler. Soon after he 

 completed his course at Cambridge, he resolved to adopt the 

 medical profession as his future occupation of life. For this 

 purpose, and to obtain the necessary qualifications, he studied 

 at various hospitals in London, Dublin, and Paris. But anxious 

 to have a good medical degree, he resolved to go through a 

 second special course of training in the University of Oxford, 

 where he accordingly entered his name as a student, both in arts 

 and medicine, on the books of Wadham College, from which he 

 graduated B.A. and M.B. in 1843, and finally M.D. in 1859. 



During the early years of his professional career. Dr. Jago 

 was a most voluminous writer on various medical subjects, the 

 most important of which are undoubtedly those connected with 

 certain special diseases of the eye. One of his first contributions 

 on this subject is on " Points in the physiology and diseases of 

 the eye," published in 1845. In this paper he develops certain 

 entoptical methods of exploring the eye by means of divergent 

 beams of light, which, in his opinion, is a theory which preceded 

 all like solutions of the problem. In 1854, he communicated a 

 paper to the Eoyal Society on "Ocular Spectres and structures 



