for the sensitive mouth and the dreamy eye, with a reflective way he had when talking, as if an undercurrent of thought were going on while he spoke, one might have taken him for a well-educated man of business, a poet-banker, or publisher.  Perhaps it is in the memory more than it was in the life, but as I recall him there seemed to be in him an arcanum of thought, something beyond what came into every-day existence,—­a life beyond the actual life, into which he withdrew, and out of which he came to speak.  I should have liked to live beside him and know him always, for in that phase of him was infinite study.  What I did see, however, left on me the impression of a man who was able only to sketch out the life he would have lived,—­a life of far greater capabilities than anything accomplished could indicate.

In giving me the letter to Tom Hughes, Lowell had remarked that, though he had never seen him, yet, as Hughes had edited his “Biglow Papers,” he thought he might assume an acquaintance sufficient to warrant a letter of introduction.  He was not mistaken, for Hughes did the fullest honor to his letter; and as long as I was in London, and indeed for many years after, our relations were of the most cordial, and not long before his death he made me a visit at Rome.  Very much of the enjoyment of that winter in London was due to the hospitable and companionable welcome of the author of “Tom Brown,” and one of the most enjoyable items was the introduction to the evenings at Macmillan’s, where the contributors to the magazine used to meet on Thursday evenings, if I remember rightly, and where I saw the Kingsleys,—­Charles only once, but Henry often enough to contract with him a pleasant friendship.  Hughes was one of the largest and most genial English natures I knew,—­robust, all alive to all his human obligations; and in those troublesome days when the American question was coming to the crisis of our Civil War he was a consistent friend of the North, when the dominant feeling in English society was hostile to it, and this was a strong bond between us.

Owen I saw frequently, and, though my scientific education was, and is, superficial, he interested me greatly; for he had, like Agassiz, the gift of making his knowledge accessible to those who only understood the philosophy and not the facts of science, and I knew enough of the former to profit by his knowledge.  Then he was a warm friend of Agassiz, and we used to talk of his theories and studies, of which I knew more than of any other scientific subject.  Like Agassiz, he had at first resisted the theory of natural selection, but had, unlike Agassiz, come to recognize the necessity of admitting the idea of evolution in some form, like Asa Gray and Jeffries Wyman.  How far he finally went in recognizing the agency of natural selection as the sufficient element in this I do not know, for at that time the battle waged over that phase of the question; but that he did not accept the solution