Arrowsmith by Sinclair Lewis

On his first day in medical school, Martin Arrowsmith was in a high state of superiority. As a medic he was more picturesque than other students, for medics are reputed to know secrets, horrors, exhilarating wickednesses. Men from the other departments go to their rooms to peer into their books. But also as an academic graduate, with a training in the basic sciences, he felt superior to his fellow medics, most of whom had but a high-school diploma, with perhaps one year in a ten-room Lutheran college among the cornfields.

For all his pride, Martin was nervous. He thought of operating, of making a murderous wrong incision; and with a more immediate, macabre fear, he thought of the dissecting room and the stony, steely Anatomy Building. He had heard older medics mutter of its horrors: of corpses hanging by hooks, like rows of ghastly fruit, in an abominable tank of brine in the dark basement; of Henry the janitor, who was said to haul the cadavers out of the brine, to inject red lead into their veins, and to scold them as he stuffed them on the dumb-waiter.