708 EEPOET OF NATIONAL MUSEUM, 1904. 



pied until time of his death. Became State geologist of Ohio in 1882. His principal 

 work as an investigator related to the occurrence and origin of petroleum and clays. 



Biogr. J. J. Stevenson. Journ. of Geol., VIII, No. 3, 1900, pp. 205-213. 



Science, Jan. 5, 1900, pp. 1-12. 



Pop. Sci. Monthly, March, 1900, pp. 607-613. 



Amer. Geologist, XXV, Apr., 1900, pp. 197-210. 



E. O. Hovey. Eng. & Min. Journ., XLVIII, No. 17, Oct. 21, 1899, p. 485. 



Owen, David Dale. Geologist. 



Born near New Lanark, Scotland, June 24, 1807; died in New Harmony, Ind., 

 November 13, 1860. Came to America in 1824, but returned to Scotland in 1826, 

 returning again to America in 1827. Graduated as doctor of medicine in 1836. Con- 

 nected with State geological survey of Tennessee under Troost. State geologist of 

 Indiana, 1837-38. Made surveys of the Dubuque and Mineral Point districts of 

 Wisconsin and Iowa, 1839-40. In 1847, was appointed United States geologist, and 

 directed to make survey of the Chippewa land district. In 1854, was appointed 

 State geologist of Kentucky; in 1857, State geologist of Arkansas; in 1859, appointed 

 for the second time State geologist of Indiana. 



Biogr. American Geologist, IV, Aug., 1889, pp. 65-72. 

 Owen, Richard. Educator. 



Born in New Lanark, Scotland, January 6, 1810; died in New Harmony, lnd., 

 March 25, 1890. Came to America with his brother, David Dale Owen, in 1827. 

 Was chief assistant to his brother, David Dale, during explorations of northern 

 shore of Lake Superior. For a time professor in Western Military Institute in Ken- 

 tucky, and the State University in Nashville. Professor of natural sciences in 

 University of Indiana from 1864 to 1879. 



Biogr. Pop. Sci. Monthly, XXIII, pp. 109-113; Pop. Sci. Monthly, XXXVII, p. 144. 



Peale, Albert Charles. Geologist. 



Born in Hecksherville, Pa., April 1, 1849. Graduated from University of Penn- 

 sylvania, M. D., in 1871. Mineralogist and geologist, U. S. Geological and 

 Geographical Survey of Territories, 1871-1879; geologist, U. S. Geological Survey, 

 1881-1898. Since 1898 he has had charge of paleobotanical collections in U. S. 

 National Museum. 

 Percival, James Gates. Geologist and litterateur. 



Born in Kensington, Conn., September 15, 1795; died in Hazelgreen, W : s., May 

 2, 1856. Received the degree of M. D. in 1820, but never practiced medicine. In 

 1824, professor of chemistry at the West Point Military Academy. In 1835, was 

 appointed, in company with Prof. C. U. Shepard, to make geological and mineral- 

 ogical survey of Connecticut. State geologist of Wisconsin, 1854-1856. 



Biogr. Am. Journ. Sci., XXII, 1856, pp. 150-1. 

 Geol. Survey of Wisconsin, 1856. Preface. 



Perry, John Bulkley. Clergyman and geologist. 



Born in Richmond, Berkshire County, Mass., December 12, 1825; died in Cam- 

 bridge, Mass., October 30, 1872. Graduated in theology from AndoVer in 1853, and 

 was preacher until 1867. In that year was appointed lecturer on geology and assist- 

 ant to Louis Agassiz in paleontology at Harvard. In 1869, lectured on geology in 

 University of Vermont. In 1871, accepted professorship of geology in Oberlin, Ohio. 



Hemminways Gazetteer of Vt., for 1901. 

 Amer. Jour. Sci., IV, 1872, p. 424. 



Peter, Robert. Chemist. 



Born in Cornwall, England, January 21, 1805; died in Louisville, Ky., 1894. Came 

 to America in 1821. In 1830, professor of chemistry in the Western University of 

 Pennsylvania. In 1832, professor of chemistry in Morrison College, Lexington, Ky. 

 Also served in a similar position in the Transylvania University and in the Kentucky 

 School of Medicine at Louisville. Subsequent to 1865, professor of chemistry in the 



