...ion of the blood. As Agassiz dissects a great many animals, especially fishes, at the house, we are making rapid progress in comparative anatomy. At four o'clock we go usually once a week to hear Oken on Natur-philosophie (a course we attended last term also), but by that means we secure a good seat for Schelling's lecture immediately after. A man can hardly hear twice in his life a course of le...