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6 4 REPORTS ON AWARDS. DESIGNS RELATING TO THE NEW BASINS OF THE PORT OF BORDEAUX. Report.—The port of Bordeaux, whose increasing traffic required new accommodations, has been recently enlarged by a basin covering an area of ten hectares, with a draught of water of 7 T 5 y% meters. It communicates with the Garonne by two locks respectively four teen meters and twenty-two meters wide. The construction of these works has given an opportunity to apply on -the largest scale yet known the system of constructing foundations by sinking hollow columns of masonry,—a system especially appropriate to the local con ditions at Bordeaux,—and to adapt it by novel means to work at great depths carried out in spite of very serious difficulties. LIGHT-HOUSE APPARATUS OF THE SECOND ORDER, REPRESENTED BY DESIGNS AND PANELS. Report.—This apparatus consists of a fixed light with flashes every four minutes; two opposed sectors, illuminating one-eighth of the horizon, are replaced by complete annular lenses, and it revolves once in eight minutes. This apparatus presents several new fea tures, viz., in regard to the adaptation of the dioptrical profile with the catadioptrical, to the greater vertical range of the dioptrical lenses, to the arrangement of the frame, and to the arrangement of the lamp valves. It deserves to be considered a valuable contribution to the improvement of light-houses. MODELS OF A SWINGING BRIDGE AT BREST. Report.—This swinging bridge, thrown over the river Penfeld, between Brest and Re* coussance, has the largest free span in the world, the span between the piers being about one hundred and six meters. The conception of this daring work, as well as the accurate execution of all its details, makes it very conspicuous, and bears evidence to the ability and skill of the engineers who planned and executed it. DRAWINGS OF A LIGHT-HOUSE AT LE FOUR. Report.—This light-house has been recently erected on the most projecting rock off d’Argenton harbor, where, during heavy gales, the waves very often break over the top of the building. The constant roughness of the sea and the unfavorable slope of the water where the building was founded necessitated special arrangements in laying the foundations. A novel cuticular apparatus has been adapted to this light-house, which is provided with a fog signal invented by Professor Lissajoux, which is worked by steam. The numerous inventions and improvements first executed in this light-house make it very remarkable. MODELS RELATING TO THE DAM AND RESERVOIR OF FURENS FOR THE WATER SUPPLY OF ST. ETIENNE. Report.—This is a combination of very important hydraulic works, undertaken within the past few years for the purpose of protecting the thrifty town of St. Etienne against in undation, and providing it with a water supply for public use and for furnishing power for the numerous manufactures of the city. The most prominent work is a reservoir fifty meters high, and containing one million two hundred thousand cubic meters, where the flood-waters of the river Furens are stored, and whence the regular water supply is deliv ered by a system of aqueducts, valves, etc. The importance of the works, the accuracy of their planning and execution, commend them for study as a most valuable contribution to the art of civil engineering. MODELS OF LIGHT-HOUSES AND LIGHT-HOUSE APPARATUS—BUOYS AND BEACONS, LAMPS AND UTENSILS. Report.—The French “ Administration centrale des Phares,” to which all nations are