472 



INDEX. 



Vibroscope, on the transformation of 



the, into a tonometer, 212. 

 Vogel (H.) on the sensibility to light 



of bromide of silver, 273. 

 Warren (T. T. P. Bruce) on a method 



of finding faults in insulated wires, 



416. 

 Water- substance, on certain relations 



between the gaseous, the liquid, 



and the solid states of, 447. 

 Waters, on the composition of certain 



mine, 164. 

 Wheatstone's bridge, on, 22, 93. 

 Wind, on the diurnal variations of 



the, and barometric pressure at 



Bombay, 228. 



END OF THE FORTY-SEVENTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 RED HON COURT, FLEET STREET. 



