INDEX. 



439 



Titles, derivation of, 72 ; deprecia- 

 tion of, 74. 

 Truth, ultimate test of, 130. 



U 



Useful passes into the beautiful, 

 418, 421. 



Voice, cause of loudness of, 215; 



cause of cjuality of, 215 ; of pitch 

 of, 216; intervals in, 217; varia- 

 bility of the pitch of, 219. 

 Voluntary and involuntary actions, 

 307. 



W 



Werner's system of Geology, 316; 

 contrast of, with the modem sys- 

 tem, 318. 



THE END. 



