[...]; while just behind him two waiters had halted in order to thrash out one of those voluble arguments in which waiters love to indulge.

[...]

'Batti, batti! I presto ravioli hollandaise', cried one of the disputing waiters at his back–or to Bruce Carmyle's prejudiced hearing it sounded like that.

'La Donna è mobile spaghetti napoli Tettrazina', rejoined the second waiter with spirit.

The Adventures of Sally. 16.III At the Flower Garden