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406 Franco-Prussian War, then in progress: "And here may I remind you of the cosmopolitan character of science, of the fact that it is mainly to the brotherly intercourse of those interested in science, and in its application to the arts and manufactures in different countries, that we must look as the small but living fire which in the end will surely serve to melt down national animosities, and to render impossible the breaking out of disasters so fatal to the welfare of humanity as that of which we are now unfortunately the spectators?"

Besides the researches to which reference has already been made, and numerous papers in the "Philosophical Transactions" and the scientific periodicals, Professor Roscoe has published "Lessons in Practical Chemistry," a work which has been translated into German, Russian, Hungarian, and Italian, and republished in this country; "Lectures on Spectrum Analysis," of which a fifth edition was published in 1878; a "Junior Course of Practical Chemistry," prepared by himself and Francis Jones in 1873; and, conjointly with Professor Schorlemmer, a large "Treatise on Chemistry," in three volumes. The last work was pronounced by "Nature," in a review of the first two volumes, one which, "when finished, will afford the most complete systematic exposition of the existing state of chemical science that has yet appeared in the English language"; and by Professor Watts as forming a treatise on inorganic chemistry "of which English science may well be proud." To "Nature" he contributed affectionate biographies of Liebig and Bunsen, He was also joint editor, with Professor Huxley and Balfour Stewart, of Macmillan's "Science Primer" series, and author of the "Primer of Chemistry." He is Examiner in Chemistry to the Science and Art Department. He was elected President of the Chemical Society of London in 1880, President of the Literary and Philosophical Society of Manchester in 1882; and is a member of the Royal Commission on Technical Instruction. He was knighted in 1884, at about the time of the meeting of the British Association at Montreal.