in 1787; and a Correspondent of the Institute in 1808. By a spontaneous and unanimous vote, the Senate of the University of Glasgow conferred on him, in 1806, the honorary degree of Doctor of Laws. In 1814, the Academy of Sciences of the Institute paid him the highest honour which it could bestow; it nominated him one of its Eight Foreign Associates. END OF THE HISTORICAL ELOGE. APPENDIX. No. I. HISTORICAL NOTE ON THE DISCOVERY OF THE THEORY OF THE COMPOSITION OF WATER. BY THE RIGHT HON. HENRY LORD BROUGHAM, F.R.S., AND MEMBER OF THE NATIONAL INSTITUTE OF FRANCE. There can be no doubt whatever, that the experiment of Mr. Warltire, related in Dr. Priestley's 5th volume,* gave rise to this inquiry, at least in * Mr. Warltire's letter is dated Birmingham, 18th April 1781, and was published by Dr. Priestley in the Appendix to the 2d Vol. of his "Experiments and Observations relating to various branches of Natural Philosophy; with a continuation of the Observations on Air,"-forming, in fact, the 5th volume of his "Experiments and Observations on different kinds of Air;" printed at Birmingham in 1781. Mr. Warltire's first experiments were made in a copper ball or flask, which held three wine pints, the weight 14 oz.; and his object was to determine "whether heat is heavy or not." After stating his mode of mixing the airs, and of adjusting the balance, he says, he "always accurately balanced the flask of common air, then found the difference of weight after the inflammable air was introduced, that he might be certain he had confined the proper proportion of |