﻿Vlll CONTENTS OF VOL. XXXVII. FOURTH SERIES. 



Page 

 On the Electrical Polarity and Inequality of the Amalgamated 



Zinc Electrodes in Sulphate of Zinc, by E. Patry 475 



On a Development of Heat which accompanies the bursting of 



the Prince Rupert's Drops, by M. Dufour 478 



Index « 481 



PLATE. 



Illustrative of Prof. R. Bunsen's Paper on the Washing of Precipitates. 





