KEY AND INDEX 



Arabian astronomer. Discovered the obliquity 

 of the ecliptic and compiled the "Toledo" astro- 

 nomical tables. 



Avenbrugger, Leopold, iv, 200. Born at Gratz, 

 1722; died at Vienna, 1809. Viennese physician 

 who introduced the method of percussion diag- 

 nosis, by applying ear to the chest and noting 

 the result of hand taps on the patient. Also an 

 insanity expert. 



Avenzoar (Abu Merwan Abelmalec ibu Zohr), 

 ii, 26. Born at Seville, 1072; died at Seville, 

 1162. A Spanish-Arabian physician who labored 

 hard to have the experimental method applied 

 to study of medicine. 



Averrhoes, ii, 10. Born at Cordova, cir. 1126; 

 died at Morocco, 1198. Spanish-Arabian philos- 

 opher and jurist. Was physician to Caliph of 

 Morocco. He was an ardent advocate of the 

 Aristotlean method, as applied to medical and 

 other sciences. 



Avicenna, Arabian "Prince of Physicians," ii, 

 24. Born near Bokhara, 980; died at Ispahan 

 cir. 1037. Arabic physician and philosopher. 

 After an adventurous existence, he finally set- 

 tled as court physician to Ala Adda-ula at Ispa- 

 han. His great work "Kanun fi'l Tibb," is a sys- 

 tem of medicine still highly regarded in the 

 Orient. Was a disciple of Aristotle. 



Avogadro, Amadeo, iv, 43. Born at Turin, 

 1776; died at Turin, 1856. Italian physicist. 

 Professor at Turin. Formulated the famous rule 

 known by his name. It is one of the funda- 

 mental principles of chemistry equal volumes 

 of gas contain equal number of molecules under 

 same conditions of pressure and temperature. 



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