Onomatopoeia

"... and the red and green stop-and-go traffic-signal, and the crowd going by, and the horse-cabs clippety-clopping along..." (page 22). The phrase 'clippety-clopping' helps to describe the sound the horses make as they walk. It just adds so much more to the book. Hemmingway describes everything in great detail. He describes the lavish scenery as well as the color of pernod. The phrase also draws to mind that horses are still commonly used. Cars were used but the people had not yet transitioned from horses to cars. The clippety-clopping of horses helps set the time period of the book.