AGASSIZ, JEAN LOUIS RUDOLPHE. Born at Motier, canton of Fribourg, Switzerland, May 28, 1807; professor of natural history at Neuchatel, 1832; studied Aar glacier, 1840-41; came to United States, 1846; professor of zooelogy and geology at Cambridge, 1848; curator of Cambridge Museum of Comparative Zooelogy, 1859; travelled in Brazil, 1865-66; around Cape Horn, 1871-72; died at Cambridge, Massachusetts, December 14, 1873. AGASSIZ, ALEXANDER. Born at Neuchatel, Switzerland, December 17, 1835; came to United States, 1849; graduated at Harvard, 1855; developed Lake Superior copper mines, 1865-69; curator of Cambridge Museum of Comparative Zooelogy, 1874-85; died at sea, March 29, 1910. GRAY, ASA. Born at Paris, Oneida County, New York, November 18, 1810; professor of natural history at Harvard, 1842-88; died at Cambridge, Massachusetts, January 30, 1888. TORREY, JOHN. Born at New York City, August 15, 1796; professor at Princeton and in College of Physicians and Surgeons, New York; State Geologist of New York; United States assayer; died at New York, March 10, 1873. DRAPER, JOHN WILLIAM. Born at St. Helena, near Liverpool, England, May 5, 1811; came to America, 1832; professor of chemistry University of New York, 1839; president of the Medical College, 1850-73; died at Hastings-on-the-Hudson, New York, January 4, 1882. RUTHERFORD, LEWIS MORRIS. Born at Morrisania, New York, November 25, 1816; graduated at Williams College, 1834; admitted to bar, 1839; abandoned law to devote himself to study of physics, 1849; died at Tranquillity, New Jersey, May 30, 1892. YOUNG, CHARLES AUGUSTUS. Born at Hanover, New Hampshire, December 15, 1834; graduated at Dartmouth, 1858; professor of astronomy at Princeton, 1877-1905; died at Hanover, New Hampshire, January 4, 1908. LANGLEY, SAMUEL PIERPONT. Born at Roxbury, Boston, August 22, 1834; secretary Smithsonian Institution, 1887-1908. NEWCOMB, SIMON. Born at Wallace, Nova Scotia, March 12, 1835; came to United States, 1853; graduated Lawrence Scientific School, 1858; professor of Mathematics, U. S. navy, 1861; director Nautical Almanac office, 1877-97; professor mathematics and astronomy Johns Hopkins University, 1884-94; died at Washington, July 11, 1909. PICKERING, EDWARD CHARLES. Born at Boston, July 19, 1846; graduated Lawrence Scientific School, 1865; professor of astronomy and director of Harvard Observatory since 1877. MARSH, OTHNIEL CHARLES. Born at Lockport, New York, October 29, 1831; professor paleontology Yale University, 1866, to death at New Haven, March 18, 1899. COPE, EDWARD DRINKER. Born at Philadelphia, July 28, 1840; professor of natural sciences, Haverford College, 1864-67; paleontologist to United States Geological Survey, 1868 to death at Philadelphia, April 12, 1897. SILLIMAN, BENJAMIN. Born at North Stratford, Connecticut, August 8, 1779; graduated at Yale, 1796; tutor there, 1799, and professor, 1802; professor emeritus, 1853; died at New Haven, Connecticut, November 24, 1864.