BIOGRAPHICAL INDEX 



Kunz, Dr. George F., v, 101. Born at New 

 York, Sept. 20, 1856. American gem expert. 

 Special agent of the United States Geological 

 Survey in 1883. Had charge of the department of 

 mines, World's Columbian, and Paris Exposi- 

 tions. Has written extensively on gems and 

 minerals. Author of "Gems and Precious 

 Stones of North America," "Mineral Resources 

 of the United States," etc. The recently discov- 

 ered precious stone kunzite was named in his 

 honor. 



Lacaille, Nicolas Louis de, iii, 13. Born at 

 Rumigny, France, March 15, 1713; died at Paris, 

 March 21, 1762. Noted French astronomer. 

 Measured the French arc of the meridian in 

 1739-41. In 1751 he went to the Cape of Good 

 Hope and made many important observations 

 on the stars of the southern hemisphere. While 

 on this expedition he determined the sun's par- 

 allax by observing the parallaxes of Mars and 

 Venus. 



Laennec, Rene Theophile Hyacinthe, iv, 201. 

 Born at Quimper, France, Feb. 17, 1781; died 

 Aug. 13, 1826. French physician. He was the 

 inventor of the stethoscope, an instrument which 

 is of great aid in diagnosis of diseases of the 

 heart and lungs. 



Lamarck, Jean Baptiste De, iv, 151. Born at 

 Bazentin, France, Aug. i, 1744; died at Paris, 

 Dec. 1 8, 1829. French naturalist. His work 

 helped directly to lay the foundation for Dar- 

 win's doctrine of evolution. His views differed 

 from Darwin's about the part played by the 

 active exertion of the organism and by "ap- 

 petency." 



