AGASSIZ, ALEXANDER EMANUEL American man of science, son of J. L. R. Agassiz, was born in Neuchatel, Switzerland, on Dec. 17, 1835. He came to the United States with his father in 1846; graduated at Harvard in subsequently studying engineering and chemistry, and taking the degree of bachelor of science at the Lawrence scientific school of the same institution in 1857; and in 18J9 became an assistant in the U.S. coast survey. Thenceforward he became a specialist in marine ichthyology, but devoted much time to the investigation, superintendence and exploitation of mines, being superintendent of the Calumet and Hecla copper mines, Lake Superior, from 1866 to 1869, and afterwards, as a stockholder, acquiring a for tune, out of which he gave to Harvard, for the museum of compar ative zoology and for furthering the study of biology at Harvard and elsewhere upwards of $I,000,000. In 1875 he surveyed Lake Titicaca, Peru, examined the copper mines of Peru and Chile, and made a collection of Peruvian antiquities for that museum, of which he was curator from 1874 to 1885. He assisted Sir Wyville Thomson in the examination and classification of the collections of the "Challenger" exploring expedition, and wrote the Revision of the Ecliini (18 7 2-74) in the reports. Between 1877 and 188o he took part in the three dredging expeditions of the steamer "Blake," of the U.S. coast survey, and presented a full account of them in 1888. Of his other writings on marine zoology, most are contained in the bulletins and memoirs of the museum of com parative zoology; but he published in 1865 (with Elizabeth Cary Agassiz, his stepmother) Seaside Studies in Natural History, a work at once exact and stimulating, and in 1871 Marine Animals of Massachusetts Bay. He died at sea on the "Adriatic" bound for the United States on March 2 7, 191 o.