"There is soda available at the buffet, at the drinks station. Biscuits and gravy, they might have today. Also, on the subject of laboratories, there's an infirmary and a morgue on the lowest accessible level of the ship. But Friday sleeps in the morgue, and the infirmary is for common usage. Dr. Watson's in charge of things, there."

Someone has not yet learned about the British use of the word 'biscuit'.