CONTENTS OF VOL. X. FIFTH SERIES. Vll 



Page 

 Mr. J. D. Kendall on the Interglacial Deposits of West 



Cumberland and North Lancashire 448 



On the Discovery of Oxide of Antimony in extensive Lodes in 



Sonora, Mexico, by E. T. Cox, of Tucson, Arizona Territory 449 

 On the Thermoelectric Power of Iron and Platinum in vacuo, 



by Prof. C. A. Voung, of Princeton, N. J 450 



On Induction in Rotating Spheres, by H. Hertz 451 



PLATES. 



I. Illustrative of Mr. W. Baily's Paper on the Vibrations of a Film 

 in reference to the Phoneidoscope. 



II. Illustrative of Mr. E. H. Liveing's Paper on a new Instrument 

 for the Detection and Measurement of Inflammable Gas in 



Mines. 



III. Illustrative of Mr. J. W. Clark's Paper on the Behaviour of 



Liquids and Gases near their Critical Temperatures. 



IV. Illustrative of Dr. Eugen Goldstein's Paper on the Electric Dis- 



charge in Rarefied Gases. 



V. ) Illustrative of Captain Abney's Paper on the Reversal of the 



VI. \ Developed Photographic Image. 



VII. Illustrative of Mr. D. Winstanley's Paper on Air-Thermometers. 



VIII. Illustrative of Messrs. Guthrie and Boys's Paper on the Conduc- 

 tivity of Liquids, 



IX. Illustrative of Prof. E. Wiedemann's Paper on the Thermic and 

 Optical Behaviour of Gases under the Influence of the Electric 

 Discharge. 

 X. Illustrative of Mr. W. H. Preece's Paper on the Space protected 

 by a Lightning-Conductor. 



XL Illustrative of Dr. A. Macfarlane's Paper on the Disruptive Dis- 

 charge of Electricity. 



