"James Jackson, a man of serene and clear intelligence, well instructed, not over book-fed, truthful to the centre, a candid listener to all opinions; a man who forgot himself in his care for others and his love for his profession; by common consent recognized as a model of the wise and good physician. Jacob Bigelow, more learned, far more various in gifts and acquirements than any of his colleagues; shrewd, inventive, constructive, questioning, patient in forming opinions, steadfast in maintaining them; a man of infinite good nature, of ready wit, of a keen sense of humor, and a fine literary taste; one of the most accomplished of American physicians; I do not recall the name of one who could be considered his equal in all respects. Walter Channing, meant by nature for a man of letters, like his brothers, William Ellery and Edward; vivacious, full of anecdote, ready to make trial of new remedies, with the open and receptive intelligence belonging to his name as a birthright; esteemed in his specialty by those who called on him in emergencies. The professor of chemistry of that day was pleasant in the lecture room; rather nervous and excitable, I should say, and judiciously self-conservative when an explosion was a part of the programme." Speaking of the new building, Doctor Holmes said: "You will enter or look into more amphitheatres and lecture-rooms than you might have thought were called for. But if you knew what it is to lecture and be lectured to, in a room just emptied of its preceding audience, you would be thankful that any arrangement should prevent such an evil. The experimental physiologists tell us that a bird will live under a bell glass until he has substituted a large amount of carbonic acid for oxygen in the air of the bell glass. But if another bird is taken from the open air and put in with the first, the new-comer speedily dies. So when the class I was lecturing to, was sitting in an atmosphere once breathed already, after I have seen head after head gently declining, and one pair of eyes after another emptying themselves of intelligence, I have said, inaudibly, with the considerate self-restraint of Musidora's rural lover: "'Sleep on, dear youth; this does not mean that you are indolent, or that I am dull; it is the partial coma of commencing asphyxia.' "You will see extensive apartments destined for the practical study of chemistry and of physiology. But these branches are no longer studied as of old, by merely listening to lectures. The student must himself perform the analyses which he used to hear about. He must not be poisoned at his work, and therefore he will require a spacious and well-ventilated room to work in. You read but the other day of an esteemed fellow-citizen who died from inhaling the vapors of a broken demijohn of a corrosive acid. You will be glad to see that every precaution is taken to insure the safety and health of our students.