Arrowsmith by Sinclair Lewis

The persistent yammer of a motor horn drew Martin to the window of the laboratory, a late afternoon in February. He looked down on a startling roadster, all streamlines and cream paint, with enormous headlights. He slowly made out that the driver, a young man in coffee-colored loose motor coat and hectic checked cap and intense neckwear, was Clif Clawson, and that Clif was beckoning.

He hastened down, and Clif cried: