Audubon, John James. Born near New Orleans, May 4, 1780; published "Birds of America," 1830-39; "Ornithological Biography," 1831-39; "Quadrupeds of America," 1846-54; died at New York City, January 27, 1851.

Agassiz, Jean Louis Rudolphe. Born at Motier, canton of Fribourg, Switzerland, May 28, 1807; professor of natural history at NeuchÂtel, 1832; studied Aar glacier, 1840-41; came to United States, 1846; professor of zoÖlogy and geology at Cambridge, 1848; curator of Cambridge Museum of Comparative ZoÖlogy, 1859; travelled in Brazil, 1865-66; around Cape Horn, 1871-72; died at Cambridge, Massachusetts, December 14, 1873.

Agassiz, Alexander. Born at NeuchÂtel, 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 ZoÖlogy, 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.

Dana, James Dwight. Born at Utica, New York, February 12, 1813; graduated at Yale, 1833; assistant to Professor Silliman, 1836-38; professor of geology and natural history, 1850-64; died at New Haven, April 14, 1895.

Newberry, John Strong. Born at Windsor, Connecticut, December 22, 1822; professor of geology at school of mines, Columbia College, 1866-90; state geologist of Ohio, 1869; died at New Haven, Connecticut, December 7, 1892.

Whitney, Josiah Dwight. Born at Northampton, Massachusetts, November 23, 1819; graduated at Yale, 1839; geologist with New Hampshire survey, 1840-42; Lake Superior, 1847-49; state chemist of Iowa, 1855; state geologist of California, 1860-74; professor of geology at Harvard, 1865 to death at Lake Sunapee, New Hampshire, August 18, 1896.

Hitchcock, Edward. Born at Deerfield, Massachusetts, May 24, 1793; professor of chemistry, Amherst College, 1825; president of the college, 1845-54; died at Amherst, Massachusetts, February 27, 1864.

Mott, Valentine. Born at Glen Cove, Long Island, August 20, 1785; graduated Columbia College, 1806; professor of surgery at Columbia, 1810-35; died at New York City, April 26, 1865.

Long, Crawford W. Born at Danielsville, Georgia, November 1, 1815; graduated medical department University of Pennsylvania, 1839; died at Athens, Georgia, June 16, 1878.

Morton, William Thomas Green. Born at Charlton, Massachusetts, August 19, 1819; practised dentistry at Boston, 1841-58; discovered anÆsthetic properties of ether, 1864; died in New York City, July 15, 1868.

Henry, Joseph. Born at Albany, New York, December 17, 1797; professor of natural philosophy at Princeton, 1832-46; first secretary of Smithsonian Institution, 1846; died at Washington, May 13, 1878.

Guyot, Arnold Henry. Born near NeuchÂtel, Switzerland, September 28, 1807; came to America, 1847; professor of physical geography and geology at Princeton, 1855; died at Princeton, February 8, 1884.

Le Conte, John. Born in Liberty County, Georgia, December 4, 1818; professor of physics University of California, 1869, to death at Berkeley, California, April 29, 1891.

Le Conte, Joseph. Born in Liberty County, Georgia, February 26, 1823; professor of geology, University of California, 1869; died in Yosemite Valley, California, July 6, 1901.

Le Conte, John Lawrence. Born at New York City, May 13, 1825; surgeon of volunteers during Civil War, and chief clerk of mint at Philadelphia from 1878 until his death there, November 15, 1883.

Shaler, Nathaniel Southgate. Born at Newport, Kentucky, February 22, 1841; graduated Lawrence Scientific School, 1862; professor paleontology at Harvard, 1868-87; professor of geology, 1887, to death, April 11, 1906.

Mann, Horace. Born at Franklin, Massachusetts, May 7, 1796; admitted to the bar, 1823; secretary of Massachusetts Board of Education, 1837-48; member of Congress, 1848-53; president of Antioch College, 1852-59; died at Yellow Springs, Ohio, August 2, 1859.

Quincy, Josiah. Born at Boston, February 4, 1772; member of Congress, 1805-13; mayor of Boston, 1823-28; president of Harvard, 1829-45; died at Quincy, Massachusetts, July 1, 1864.

Eliot, Charles William. Born at Boston, March 20, 1834; graduated from Harvard, 1853; taught mathematics and chemistry in Lawrence Scientific School, 1858-69; president of Harvard, 1869-1909.

Dwight, Timothy. Born at Northampton, Massachusetts, May 14, 1752; graduated from Yale, 1769; president of Yale, 1795-1817; died at New Haven, Connecticut, January 11, 1817.

Porter, Noah. Born at Farmington, Connecticut, December 14, 1811; graduated at Yale, 1831; tutor at Yale, 1833-35; pastor of Congregational churches at New Milford, Connecticut, and Springfield, Massachusetts, 1836-46; professor of metaphysics at Yale, 1846-71; president of Yale, 1871-86; died at New Haven, March 4, 1892.

Dwight, Timothy. Born at Norwich, Connecticut, November 16, 1828; graduated at Yale, 1849; studied divinity, 1851-55; professor of sacred literature, 1858; president of Yale, 1886-98.

Edwards, Jonathan. Born at East Windsor, Connecticut, October 5, 1703; pastor of Congregational Church, Northampton, Massachusetts, 1727-50; missionary to the Indians, 1751-58; president of Princeton College, 1758; died at Princeton, March 22, 1758.

Witherspoon, John. Born in Haddingtonshire, Scotland, February 5, 1722; president of Princeton, 1768; delegate to Continental Congress, 1774-75; died near Princeton, September 15, 1794.

McCosh, James. Born at Carskeoch, Ayrshire, Scotland, April 1, 1811; president of Princeton, 1868-88; died at Princeton, November 16, 1894.

Addams, Jane. Born at Cedarville, Illinois, 1860; graduated Rockford College, 1881; opened Hull House, 1889.