On the 8th inst., Tuesday, I went immediately after breakfast to the university and heard Professor Christison’s lecture, Materia Medica. He is an excellent lecturer. I spent a half hour with him, in looking over his cabinet of preparations, which contains a large number of fruits, etc., preserved in strong brine instead of spirits. I acquired some useful information concerning the best way to close the jars, for which he has some very neat plans. Then I heard Professor Forbes again; elegant as usual, but he did not succeed very well in his experiments. The next hour I had a rich treat. I heard another lecture from Professor Wilson, on the Association of Ideas, which on this occasion he noticed in a more practical view than before. He recited, in his glowing manner, several passages from Virgil, and a long one from Milton, and gave a long and most eloquent analytic commentary upon each, far exceeding anything of the kind I ever heard before. After visiting the library of the university--a most magnificent room--I set out for Holyrood House.... I bought one or two poor prints, a cast of the seal-ring of Mary, plucked a bit of holly from a bush standing by the place by the altar before which Mary was married to Bothwell, and reluctantly took my leave. There was yet some time remaining, so I set out to climb Arthur’s Seat, which rises abruptly behind Salisbury Crags to the height of eight or nine hundred feet. I attained my wish, and had a beautiful view, from the summit, of the city beneath my feet, and the wide country around. I descended more rapidly than I went up, though at some risk to my neck. Returned to Dr. Greville’s, where I dined and spent all the evening.