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 from the discovery of the muscular structure of the arterioles by Henle, and the work of Claude Bernard on vasomotor nerves. His views on the cause of the hypertrophied heart in cases of Bright's disease are now generally regarded as correct. His ideas on usphyxia, which he continued to the last to call by the old-fashioned, but ctymologically correct, name, apncea, formed the subject of another spirited debate; and, in conclusion, one must mention a con troversy of another kind, the dispnte with Sir William Gull over a point of professional etiquette connected with the "Balham Case." The point was decided in Johnson's favour by the College of Physicians, but the incident left a good deal of bitterness behind it Still this long series of struggles did not embitter Johnson's life. He was always able to discuss the matters involved without a trace of ill-feeling, though a mention of any one of them would lead him into a prolonged and forcible exposition of his own views.

In his later essays he was able to write with calmness, and was willing to leave to time the recognition of what was true in the active and full life-work, which he must have known was then drawing to a close

W. D. H

HENRY NEWELL MARTIN was born on July 1, 1848, at Newry, County Down, Ireland. He was the eldest of a family of twelve, his father being at the time a Cougregational minister, but afterwards becoming a schoolmaster. Both his parents were Irish, his father coming from South Ireland, and his mother from North Ireland. He received his early education chiefly at honie; for though he went to several schools, his stay was not long at any one of them.

Having matriculated at the University of London before he was fully sivteen years of age (an exemption as to age being made in his favour), he became an apprentice to Dr. McDonagh, in the Ham stead Road, London, in the neighbourhood of University College, on the understanding that the perfocmance of the services which might bo required of him as apprentice, should not prevent his attending the teaching at the Medical School of the College, and the practice at the hos pital. During his carecr at University College he greatly distinguished himself, taking several medals and prizes, in spite of his time for study being, on account of the above-mentioned duties, less than that of his fellow students. In 1870 he obtained a scholarship at Christ's College, Cambridge; he had, in the summer of that year, conducted at Cambridge a class of Histology for the late Sir G. Humphry. The writer of this notice had about the same time been appointed Prlector of Physiology at Trinity College, and the two went up to Cambridge together in tho October of that year. He at once undertook to act as the demonstrator of the