Arrowsmith by Sinclair Lewis

Digamma Pi was housed in a residence built in the expansive days of 1885. The living room suggested a recent cyclone. Knife-gashed tables, broken Morris chairs, and torn rugs were flung about the room, and covered with backless books, hockey shoes, caps, and cigarette stubs. Above, there were four men to a bedroom, and the beds were iron double-deckers, like a steerage.

For ashtrays the Digams used sawed skulls, and on the bedroom walls were anatomical charts, to be studied while dressing. In Martin's room was a complete skeleton. He and his roommates had trustingly bought it from a salesman who came out from a Zenith surgical supply house. He was such a genial and sympathetic salesman; he gave them cigars and told G. U. stories and explained what prosperous doctors they were all going to be. They bought the skeleton gratefully, on the installment plan. Later the salesman was less genial.