PROCEEDINGS OE 



THE EOYA'L SOCIETY. 



VOL. XXIV. 



' L ^>Ko. 166. 



CONTENTS. 



^#72 



January 6, 1876. 



PAGE 



I. On the Expansion of Sea- water by Heat. By T. E. Thorpe, Ph.D., and A. 

 W. Rucker, M.A. (Fellow of Brasenose College, Oxford), Professors of 

 Chemistry and Physics in the Yorkshire College of Science 159 



II. On the Action of Light on Tellurium and Selenium. By Prof. W. Gr. 



Adams, F.R.S 163 



III. On the Refraction of Sound by the Atmosphere. By Prof. Osborne Rey- 



nolds, Owens College, Manchester 164 



IV. On the Length of the Spark from a Battery of 600, 1200, 1800, and 2400 



rod- Chloride-of- Silver Cells, and some Phenomena attending the Discharge 

 of 5640 Cells. By Warren De La Rue, D.C.L., F.R.S., and Hugo W. 

 Muller, Ph.D., F.R.S .... 167 



January 13, 1876. 



On the» Optical Deportment of the Atmosphere in reference to the Pheno- 

 mena of Putrefaction and Infection. By John Tyndall, F.R.S. . . . 171 



January 20, 1876. 



I. Certain cases of Electromotive Force sustained by the Action of Electrolytes 



on Electrolytes. By J. Hopkinson 183 



II. On Reversed Photographs of the Solar Spectrum beyond the Red, obtained 

 on a Collodion Plate. (In a Letter to Prof. Stokes.) By Captain J. Water- 

 house, Assistant Surveyor- General of India 186 



[For continuation of Contents see ^.thpage of Wrapper.} 



