552 



INDEX. 



Violle (J.) on the temperature of the 

 sun, 158, 233, 395. 



Virial, on different forms of the, 1 . 



Volcanoes of the Highlands, on the 

 ancient, 541. 



Vulcanicity, on some points in Mal- 

 let's theory of, 41. 



Watts (Dr. W. M.) on the spectrum 

 of carbon, 369, 456. 



Wave-motion, on a simple method of 

 illustrating the chief phenomena of, 

 262. 



Waves, on, 204. 



Wiedemann (Dr. E.) on the light re- 

 flected by permanganate of potas- 

 sium, 231 ; on a new method for 



measuring the specific heat of 

 gases, 398. 



Wind instruments, on wind pressure 

 in the human lungs during per- 

 formance on, 113. 



Wright (Prof. A. W.) on the polari- 

 zation of the zodiacal light, 13. 



Wright (Dr. C. R. A.) on the relations 

 between affinity and dissected for- 

 mulae, 401. 



Zambra (J. W.) on a new deep-sea 

 thermometer, 306. 



Zodiacal light, on the polarization of 

 the, 13. 



Zollner (Prof. F.) on a simple ocular- 

 spectroscope for stars, 156. 



END OF THE FORTY-EIGHTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 RED LION COURT, FLEET STREET. 



