BIOGRAPHICAL INDEX 



cial researches in climatology, meteorology, elec- 

 tricity, and polarized light. 



Draper, Daniel, iii, 67. Born at New York, 

 1841. American meteorologist. Assisted his 

 brother Henry in equipping his observatories, 

 1869. Made director New York Meteorological 

 Observatory, and designed many self-recording 

 instruments. 



Draper, Dr. Henry, iii, 67. Born in Virginia, 

 1837; died in New York, 1882. American physi- 

 cian and scientist. Educated New York, Pro- 

 fessor of Medicine, and afterward of Chemistry 

 in New York University. Also interested in 

 astronomy, built large telescope at Hastings-on- 

 Hudson, and took up celestial photography with 

 valuable results. 



Draper, Dr. John W., iv, 70. Born near Liver- 

 pool, England, 1811; died at Hastings-on-Hud- 

 son, 1882. American chemist, physiologist, and 

 writer. Educated London University. Came 

 to America 1831. Studied University of Penn- 

 sylvania. Professor in Hampden Sidney Coll, 

 Va., 1836. 1839, came to New York and helped 

 found Medical School, New York University, 

 where he was Professor of Chemistry, afterward 

 (1850), of Physiology. Made valuable contri- 

 butions to physical chemistry, especially in 

 chemical action of light, and spectrum analysis, 

 and he greatly improved the daguerreotype pro- 

 cess. 



Dubois-Reymond, Emil, iv, 262. Born at Berlin, 

 1818; died at Berlin, 1896. German physiologist. 

 Educated at Berlin for the ministry; finally 

 turned to chemistry and physics; later to medi- 

 cine. 1858, became Professor of Physiology, 



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