It is in a broad but sombre gallery of the more ancient vaults--the roughly-hewn walls of which are black from the combined action of alcohol and carbonic acid gas--that the processes of disgorging the wine of its sediment, adding the syrup, filling up the bottles with wine to replace that which gushes out when the disgorging operation is performed, together with the re-corking, stringing, and wiring of the bottles, are carried on. The one or two adjacent shafts impart very little light, but a couple of resplendent metal reflectors, which at a distance one might fancy to be some dragon's flaming eyes, combined with the lamps placed near the people at work, effectually illuminate the spot. [Illustration: THE CELLARS OF M. LOUIS DUVAU AÎNÉ AT THE CHÂTEAU OF VARRAINS.] Another considerable manufacturer of sparkling Saumur is M. Louis Duvau aîné, owner of the château of Varrains, in the village of the same name, at no great distance from the Coteau de Saumur. His cellars adjoin the château, a picturesque but somewhat neglected structure of the last century, with sculptured medallions in high relief above the lower windows, and florid vases surmounting the mansards in the roof. In front is a large rambling court shaded with acacia and lime trees, and surrounded by outbuildings, prominent among which is a picturesque dovecot, massive at the base as a martello tower, and having an elegant open stone lantern springing from its bell-shaped roof. The cellars are entered down a steep incline under a low stone arch, the masonry above which is overgrown with ivy in large clusters and straggling creeping plants. We soon come upon a deep recess to the right, wherein stands a unique cumbersome screw-press, needing ten or a dozen men to work the unwieldy capstan which sets the juice flowing from the crushed grapes into the adjacent shallow trough. On our left hand are a couple of ancient reservoirs, formed out of huge blocks of stone, with the entrance to a long vaulted cellar filled with wine in cask. We advance slowly in the uncertain light along a succession of gloomy galleries, with moisture oozing from their blackened walls and roofs, picking our way between bottles of wine stacked in huge square piles and rows of casks raised in tiers. Suddenly a broad flood of light shooting down a lofty shaft throws a Rembrandtish effect across a spacious and most melodramatic-looking cave, roughly hewn out of the rock, and towards which seven dimly-lighted galleries converge. On all sides a scene of bustling animation presents itself. From one gallery men keep arriving with baskets of wine ready for the disgorger; while along another bottles of wine duly dosed with syrup are being borne off to be decorated with metal foil and their distinctive labels. Groups of workmen are busily engaged disgorging, dosing, and re-corking the newly-arrived bottles of wine; corks fly out with a succession of loud reports, suggestive of the irregular fire of a party of skirmishers;