And at night they did not dine in the hotel, where, hidden springs of electricity flooding the great dining-room with light, it became as it were an immense and wonderful aquarium against whose wall of glass the working population of Balbec, the fishermen and also the tradesmen's families, clustering invisibly in the outer darkness, pressed their faces to watch, gently floating upon the golden eddies within, the luxurious life of its occupants, a thing as extraordinary to the poor as the life of strange fishes or molluscs: (an important social question, this; whether the wall of glass will always protect the wonderful creatures at their feasting, whether the obscure folk who watch them hungrily out of the night will not break in some day to gather them from their aquarium and devour them.) Meanwhile there may have been, perhaps, among the gazing crowd, a motionless, formless mass there in the dark, some writer, some student of human ichthyology who, as he watched the jaws of old feminine monstrosities close over a mouthful of food which they proceeded then to absorb, was amusing himself by classifying them according to their race, by their innate characteristics as well as by those acquired characteristics which bring it about that an old Serbian lady whose buccal protuberance is that of a great sea-fish, because from her earliest years she has moved in the fresh waters of the Faubourg Saint-Germain, eats her salad for all the world like a La Rochefoucauld.