Page 



On a Self-recording Method of Measuring the Intensity of the Chemical 

 Action of Total Daylight. By H. E. Roscoe, F.R.S., Professor of Che- 

 mistry in Owens College, Manchester 158 



Contributions to the History of Explosive Agents. Second Memoir. By 

 F. A. Abel, F.R.S., Treas. C.S 160 



February 12, 1874. 



Note on the Synthesis of Formic Aldehyde. By Sir B. C. Brodie, Bart.. 

 F.R.S I , 171 



On the Influence of Brandy on the Bodily Temperature, the Pulse, and the 

 Respirations of Healthy Men. By E. A. Parkes, M.D., F.R.S., Professor 

 of Hygiene, Army Medical School 172 



Experimental Demonstrations of the Stoppage of Sound by partial Reflec- 

 tions in a non-homogeneous Atmosphere. By John Tyndall, D.C.L., 

 LL.D., F.R.S., Professor ot Natural Philosophy in the Royal Institution 190 



On the Division of a Sound- Wave by a Layer of Flame or heated Gas into 

 a reflected and a transmitted Wave. By John Gottrell, Assistant in the 

 Physical Laboratory of the Royal Institution 190 



February IS, 1874. 



On the Absorption of Carbonic Acid by Saline Solutions. By J. Y. Bucha- 

 nan, Chemist on board H.M.S. ' Challenger ' ........................ 192 



On an Instrument for the Composition of two Harmonic Curves. By A. E. 

 Donkin, M.A., F.R.A.S., Fellow of Exeter College, Oxford ........... ,^196 



On the Number of Figures in the Period of the Reciprocal of every Prime 

 Number below 20,000. By William Shanks ............ ............ 200 



February 26, 1874. 



The Winds of Northern India, in relation to the Temperature and Vapour- 

 constituent of the Atmosphere. By Henry F. Blanford, F.G.S., Meteoro- 

 logical Reporter to the Government of Bengal ...................... 210 



Note on Displacement of the Solar Spectrum. By J. H. N. Hennessey, 

 F.R.A.S. 219 



On White Lines in the Solar Spectrum. By J. H. N. Hennessey, F.R.A.S. 221 

 List of Presents 223 



No. 151. March 5, 1874, 

 List of Candidates for Election into the Society ,,,,,,, , , . 228 



The Localization of Function in the Brain. By David Ferrier, M. A., M.D., 

 M.R.C.P., Professor of Forensic Medicine, King's College, London 229 



