Maury, as the representative of the United States, sailed from New York on July 23, 1853, by way of England. Upon landing at Liverpool, he was invited to address the merchants in the City Hall on the subject of the uniform plan of observation at sea, and the following month he spoke to the underwriters and shipowners of London at Lloyd’s on the same subject. These speeches produced a more cordial coöperation on the part of the British government which had previously been rather lukewarm in its attitude toward the undertaking. The conference was convened at the residence of the Minister of the Interior in Brussels on August 23, 1853, and Jacques Adolphe Lambert Quetelet, Director of the Royal Observatory of Belgium, was made its president. Maury was requested to direct the proceedings of the conference, but he declined the honor. He was then asked by the president to state the purposes of the meeting, and after his short introductory address President Quetelet proposed that the conference pass a vote of thanks to Maury and record their gratitude for the “enlightened zeal and earnestness” he had displayed in the important and useful work which formed the subject of their deliberations. This, of course, was unanimously passed. The discussions went on daily with the greatest harmony, until the close of the conference on September 8. The results were the adoption of an abstract log for the use of the men-of-war of all nations and also one for all merchantmen to use in the system of coöperative observations. Full explanatory notes for the keeping of these logs in such a way as to cover all the phenomena of the ocean were agreed upon, and the hope was expressed that these abstract logs might enjoy in time of war the same immunity that was accorded to vessels engaged in discovery or other scientific research. The Brussels Conference was an unqualified success, and Maury was very enthusiastic over the new chapter of Marine Meteorology which was about to be opened in the volume of Nature. “Rarely before”, he wrote somewhat later, “has there been such a sublime spectacle presented to the scientific world: all nations agreeing to unite and coöperate in carrying out one system of philosophical research with regard to the sea. Though they may be enemies in all else, here they are to be friends. Every ship that navigates the high seas, with these charts and blank abstract logs on board, may henceforth be regarded as a floating observatory, a temple of science”.[4] Soon after the conference, Prussia, Spain, Sardinia, the free city of Hamburg, the republic of Bremen, Chile, Austria, and Brazil, all joined the enterprise; and the Pope established honorary flags of distinction for the ships of the papal states, which could be awarded only to those vessels which kept the abstract logs of the Brussels Conference.