"There goes the greatest man in this country," said a fashionable Boston youth, one day in the spring of 1866. It was Louis Agassiz returning from a call on President Hill. Such a statement shows that the speaker belonged to a class of people called Tories, in 1776, and who might properly be called so still. As a matter of fact, Agassiz had long since passed the meridian of his reputation, and his sun was now not far from setting. He had returned from his expedition to South America with a valuable collection of fishes and other scientific materials; but his theory of glaciers; which he went there to substantiate, had not been proven. Darwin's "Origin of Species" had already swept his nicely- constructed plans of original types into the fire of futile speculation. Yet Agassiz was a great man in his way, and his importance was universally recognized. He had given a vigorous and much-needed impetus to the study of geology in America, and as a compendium of all the different branches of natural history there was nobody like him. In his lifelong single-minded devotion to science he had few equals and no superiors. He cared not for money except so far as it helped the advancement of his studies. For many years Madam Agassiz taught a select school for young ladies (to which Emerson, among others, sent his daughters), in order to provide funds for her husband to carry on his work. It is to be feared that the Commonwealth of Massachusetts was rather stingy to him. Edward Everett once made an eloquent address in his behalf to the legislature, but it had no effect. Louis Napoleon's munificent offers could not induce him to return to Paris, for he believed that more important work was to be done in the new world,-- which, by the way, he considered the oldest portion of the globe. In height and figure Agassiz was so much like Doctor Hill that when the two were together this was very noticeable. They were both broad- shouldered, deep-chested men, and of about the same height, with large, well-rounded heads; but Agassiz had an elastic French step, whereas Doctor Hill walked with something of a shuffle. One might even imagine Agassiz dancing a waltz. Lowell said of him that he was "emphatically a man, and that wherever he went he made a friend." His broad forehead seemed to smile upon you while he was talking, and from his simple- hearted and genial manners you felt that he would be a friend whenever you wanted one. He was the busiest and at the same time one of the most accessible persons in the university.