472 



INDEX. 



Turner (Dr.) on the volatility of oialic 

 acid, 161 ; on a mode of ascertaining 

 the value of manganese ores, 235. 



Tweed, geology of the banks of, 13, 85. 



U}>eneus, 460. 



Vegeto-alkalies, electro-chemical de- 

 composition of, 237. 



Vigors (Mr.) on the genus Ortyx, 54 ; 

 on Strix personata, 46 1 . 



Warrington's (Mr.) examination of a 

 native sulphuret of bismuth, 29. 



Watches, new alloy for the pivot-holes 

 of, 71. 



Water cement, an artificial, 442. 



Webster's (Dr.) English Dictionary, 

 396. 



Weisse's planetary tables, errata in,245. 



Whewell (Prof.) on Ricardo's princi- 

 ples of political economy, 462. 



Willis (Mr.) on sound, 462. 



Winch (Mr.) on the geology of the 

 banks of the Tweed, 13, 85. 



Yarrell's (Mr.) dissection of a chin- 

 chilla, 227 ; notes on the Ctenodac- 

 tylus Massonii t 449. 



Yates (Rev. J.) on the formation of 

 alluvial deposits, 48. 



Yorkshire, review of Phillips's Geology 

 of, 342, 430. 



Zenith distance, on the effect of a 

 change of polar distance on the re- 

 duction of a, 338. 



Zoological Society, 52, 140, 222, 366, 

 449. 



%* A General Index to thejirst ten volumes of the Philosophical 

 Magazine and Annals, will be published, (after the termination of 

 the next volume, which will be the tenth of the New Series,) with 

 the Number for January 1832. 



END OF THE NINTH VOLUME. 



L A M M A M 



LONDON: 



FRINTED BY RICHARD TAYLOR, HKD LION COURT, FLEET STREET. 

 1831. 



