KEY AND INDEX 



Johns Hopkins University. Wrote popularly 

 on astronomy and political economy. 



Newcomen, Thomas, vi, 89. Born in 1663; 

 died in August, 1729. English inventor. He 

 invented (with Cawley and Savery) the atmos- 

 pheric steam-engine, which was patented in 1705. 



Newlands, John A. R., iv, 67. Born in Eng- 

 land, 1838; died at London, July 29, 1898. An 

 English chemist. He was one of the first to 

 propound the conception of the periodicity 

 among the chemical elements. (See Mendeleeff.) 



Newton, Sir Isaac, ii, 236. Born at Wools- 

 thorpe, near Grantham, England, Dec. 25, 1642 

 (O.S.); died at Kensington, March 20, 1727. 

 English mathematician and natural philosopher. 

 Discoverer of the law of universal gravitation. 

 (See Vol. II, pp. 236-251.) 



Nicholson, William, iii, 232. Born at London, 

 1753; died in 1815. English physicist and chem- 

 ist. He (with Carlisle) decomposed water into 

 its elements, hydrogen and oxygen, by galvan- 

 ism in 1800. 



Oersted, Hans Christian, iii, 236. Born at 

 Rudkjobing, Denmark, Aug. 14, 1777; died 

 March 9, 1851. A Danish physicist. In 1819 he 

 discovered electro-magnetism by passing a cur- 

 rent of electricity through a wire held parallel 

 with, but not quite touching, a suspended mag- 

 netic needle. 



Oken, Lorenz, iv, 160. Born at Bolsbach, 

 Swabia, Aug. I, 1779; died at Zurich, Aug. u, 

 1861. German naturalist and natural philoso- 

 pher. In a work published during his profes- 

 sorship in the University of Zurich he outlined 



