Dr. Holmes was once a little disturbed, and much amused, at the same time, by a reference to his "medicated writings." The careful reader will note a strong pathological element in most of Dr. Mitchell's works; not enough, however, to warrant describing them as "medicated." The fact is, Dr. Mitchell has made good use of his rare scientific knowledge in the development of many of his characters. One of his intimate friends is reported to have said once that the doctor is constantly studying human characteristics, especially the characteristics of singular persons. "He picks out their brains in a very fine and delicate way," said the friend. "Thus he studies human nature, much in that same synthetical manner in which he dissects a physical malady." Personally the author of "Hugh Wynne" is described as gentle, cordial, and, in convivial company, very entertaining. It has frequently been said of him that he appears to be what he is,--a scholar and a scientist. Some years ago, when Dr. Mitchell was a guest in one of the semi-literary clubs in London, he and the circle around him fell into a discussion of problem novels, which finally resolved itself into a discussion of "Tess of the D'Urbervilles," then in the heyday of its popularity. Dr. Mitchell took his ground on two points: he expressed admiration of Mr. Hardy as an artist, but utter dislike of the scheme of "Tess." A man who had meantime joined the circle entered quietly and unobtrusively into the conversation, admitting the force of some of Dr. Mitchell's general objections to problem novels, but maintaining the ethical and artistic merits of the plan of Judge Hardy's new book. The newcomer showed such an intimate knowledge of the construction of "Tess" that the American paid more than ordinary attention to him. At length, when the company was dispersing, Dr. Mitchell's host, with an innocent smile, proceeded to make the two debaters formally acquainted with each other. "This is a friend of mine, Doctor," he said to his guest, "about whose work you know a great deal. Allow me to introduce to you Thomas Hardy, with whom you can hardly find any fault for defending poor Tess." The acquaintance thus curiously begun has since ripened into a rich friendship. Dr. Mitchell does most of his literary work at Bar Harbor, in the summer. There is no sign of the end of this pure labor of love; but the work which exists already is sufficient, in itself, to show that a man burdened with the gravest interests of medical science may give profitable and brilliant employment to his imagination. [Illustration: ROBERT GRANT.] ROBERT GRANT Robert Grant leads the American satirists. Many writers, unnamed paragraphers and critics of high degree, have pursued him relentlessly; but he will not surrender. Contrariwise, it is more likely that they will yet surrender to him. He has Napoleon's way of turning upon pursuers.