Rev. Stephen Olin, D.D., President of the Wesleyan University, died at his residence in Middletown, Conn., on the 16th of August. His health had not been strong for many years, and an attack of epidemic dysentery proved too much for his enfeebled frame. Born in Vermont, on the 2d of March, 1797, he received his academical education at Middlebury College, where he graduated with the highest honor. In 1824, he entered upon the ministry of the Gospel, in South Carolina, and soon became eminent as a pulpit orator. In 1830, he was called to a professorship in Franklin College, Ga., and in 1832 to the Presidency of Randolph Macon College, Va. The years from 1837 to 1841, he passed in an extended career of travel through Europe and the East: and the fruit of his observations in the latter region, have appeared in his two excellent volumes of "Travels in Egypt, Arabia Petræa, and the Holy Land" (Harper and Brothers). In 1842, he was chosen President of the Wesleyan University, and filled that office to the time of his death. Dr. Olin's reputation as an author must depend upon his Travels, and upon his published Discourses, which, it is to be hoped, will be gathered together in permanent form. The Travels are marked by quick and sagacious observation, considerable power of graphic description, and sound judgment. Dr. Olin's account of Egypt is the best, on the whole, in the language. The Discourses are massive, full of thought, and yet glowing with fervor. In breadth and comprehensiveness they are perhaps equal to any thing that the American pulpit has produced. It was, indeed, as a pulpit orator that Dr. Olin shone pre-eminently. His power consisted, not in any single quality--in force of reasoning--or fire of imagination--or heat of declamation--but in all combined. His course of argument was always clear and strong, yet interfused throughout with passion--the two inseparably united in a torrent that overwhelmed all who listened to him. Dr. Olin's personal qualities were those of the highest style of man. His nature was imaginative--so full of genial kindness as to win all hearts. None could be in his company even for a few moments without feeling this fascination, and at the same time without imbibing a deep reverence for the intellectual majesty of the man. He had, in a very remarkable degree, what Coleridge calls one of the highest characteristics of genius: "the power to carry forward the fresh feelings of childhood on through youth, and manhood, and age:" there was no decay of feeling, no sign of senility in failing of human interest or sympathy. With these qualities, it is not strange that he was sought for to fill high places in literary institutions, and that as President of a University, he was eminently useful and successful. He would have been equally distinguished, we are sure, in the world of letters, had not his work been hindered by lifelong disease. As it was, it is wonderful indeed that he accomplished so much.