... Longfellow was the first, I think, to introduce the prefix Mr. in addressing students, a thing now almost universal. For our other modern-language teachers, we had Pietro Bachi, a picturesque Italian refugee; in German, Bernard Roelker, since well known as a lawyer in New York; and we had that delightful old Francis Sales, whom Lowell has commemorated, as our teacher of Spanish. In him we had a...