CONTENTS OF VOL. XIII. FIFTH SERIES. V 



Page 



Professors King and Bowney's Old Chapter of the Geo- 

 logical Record with a New Interpretation, or Bock 

 Metamorphism (especially the Methylosed kind), and its 



resultant Imitations of Organisms 217 



Journal and Proceedings of the Eoyal Society of New 



South Wales 222 



On the Formation of Peroxide of Hydrogen during Combus- 

 tion, by Alois Schuller 222 



On the Law of Badiation, by J. Violle 225 



On Wheatstone's Bridge, by K. F. Slotte 227 



On the Combination of Carbonic Acid and "Water, by S. 

 Wroblewski 228 



NUMBEE LXXXL— APEIL. 



Mr. J. B. Hannay's Examination of Vacua. (Plate VI.) .... 229 



Mr. A. A. Michelson on Interference Phenomena in a new 

 Form of Eefractometer . . 236 



Dr. J. Hopkinson on the Eefractive Index and Specific Induc- 

 tive Capacity of Transparent Insulating Media 242 



Mr. C. V. Boys on Water-pipes that do not burst with Frost 244 



Dr. J. Kerr's Electro-optic Experiments on various Liquids . . 248 



Prof. S. P. Thompson on the Electric Eesistance of Carbon 

 under Pressure 262 



Dr. C. E. A. Wright on the Determination of Chemical Affinity 

 in terms of Electromotive Force. — Part V 265 



Notices respecting New Books : — 



Captain A. Cunningham's Eoorkee Hydraulic Experiments 299 

 Mr. W. F. Stanley's Experimental Eesearches into the 

 Properties and Motions of Fluids, with Theoretical 

 Deductions therefrom 300 



Note on Mr. J. J. Thomson's Investigation of the Electromag- 

 netic Action of a moving Electrified Sphere, by G-eorge 

 Francis Fitzgerald, Fellow of Trinity College, Dublin, &c . . 302 



On a Vibratory Motion at the Origin of a Jet of a Vapour, 

 by M. Th. Vautier 306 



On the Compressibility of Gases, by M. E. Sarrau 306 



NUMBEE LXXXIL— MAY. 



Mr. W. Le Conte Stevens on Physiological Perspective. (Plate 

 VIII. figs. 1-5.) 309 



Mr. W. Le Conte Stevens on an Adjustable and Eeversible 

 Stereoscope. (Plate VIII. figs. 6 & 7.) 322 



