KEY AND INDEX 



physician. He discovered the principle of apla- 

 natic foci, and as a result he greatly improved 

 the construction of object glasses of micro- 

 scopes. 



Lockyer, Sir Norman, v, 73. Born at Rugby, 

 England, May 17, 1836. A noted English as- 

 tronomer. He is noted for much original work 

 in the field of astronomy, and is an ardent ad- 

 vocate among other things of the theory of the 

 meteoric origin of all members of the sidereal 

 family; and the dissociation theory of the ele- 

 ments, according to which our so-called elements 

 are really compounds, capable of being disso- 

 ciated into simpler forms when subjected to 

 extreme temperatures, such as pertain in many 

 stars. 



Lodge, Sir Oliver, v, 109. Born at Stafford- 

 shire, England, June 12, 1851. English physi- 

 cist. His name is closely associated with the 

 advances in our knowledge of radio activity and 

 the structure of the atom. He has suggested 

 that the instability of the atom may be the re- 

 sult of the atom's radiation of energies. 



Long, Dr. Crawford W., iv, 215. An Ameri- 

 can physician whose name is closely associated 

 with the discovery of etherization. He actually 

 performed painless surgical operations of a 

 minor nature with the use of ether some little 

 time before Morton's demonstration. But he 

 was not sure that the effects produced were not 

 due to hypnotism quite as much as to the drug. 



Lotze, Rudolf Hermann, iv, 263. Born at 

 Bautzen, Saxony, May 21, 1817; died at Berlin, 

 July i, 1881. German physiologist, psycholo- 

 gist, and philosopher. He is remembered as a 



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