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Death of Professor Marsh.—Othniel C. Marsh, professor of paleontology in Yale University, and curator of the geological collection of that institution, died of pneumonia at his home in New Haven, Connecticut, March 18th. He had not been in good health for several years, and succumbed to the effects of a cold which he had caught before wholly recovering from a previous cold. A sketch of his life up to that time, embracing the most active parts of his career as a geological explorer, in which he gained great renown, was given, with a portrait, in the Popular Science Monthly for September, 1878. During the period that has intervened he made studies of the results of his explorations and other geological work, and published papers of very high scientific value. About a year ago he transferred his extensive and famous collections at the Peabody Museum to the university. These collections were among the finest of their kind in the world, and were especially remarkable for their fossils of immense animals exhumed from the Western plains. They were greatly admired by Professor Gaudry, the eminent French geologist, who spoke of them in terms of high praise in the Revue des Deux Mondes of October 15, 1898. It was through his efforts that the funds were obtained from George Peabody, his uncle, for the construction of the Peabody Museum, a part of which has been built. His health having apparently improved for a few months previous to his death, he had been working with renewed activity at the museum, and had recently written articles on paleontological subjects. Having considerable means of his own, he served the university without salary, and carried on his explorations mostly at his own cost, paying large sums to assistants and for other items in the work. He left ten thousand dollars to the National Academy of Sciences, of which he was one of the founders and was for several years president, and all of the rest of his estate, estimated to be worth nearly one hundred thousand dollars, to Yale University.