On the Absorption and Radiation of Heat by Gaseous Matter. 

 Second Memoir. By John Tyndall, Esq., F.R.S 558 



Remarks upon the most correct Methods of Inquiry in reference to 

 Pulsation, Respiration, Urinary Products, Weight of the Body, and 

 Food. By Edward Smith, M.D., LL.B., F.R.S 561 



On the Motions of Camphor on the Surface of Water. By Charles 

 Tomlinson, Esq 575 



On Magnetic Calms and Earth-Currents. By Charles V. Walker, 

 Esq., F.R.S 578 



On the Dicynodont Reptilia, with a Description of some Fossil Re- 

 mains brought by H.R.H. Prince Alfred from South Africa in 

 November 1860. By Professor R. Owen, F.R.S 583 



Notices of some Conclusions derived from the Photographic Records 

 of the Kew Declinometer, in the years 1858, 1859, 1860, and 1861. 

 By Major-General Edward Sabine, P.R.S 585 



On the Action of Chloride of Iodine on Iodide of Ethylene and Pro- 

 pylene Gas. By Maxwell Simpson, M.B 590 



Letter to the Council from Sir George Everest, C.B., F.R.S., On the 

 Expediency of re-examining the Southern Portion of the Great 

 Indian Arc of the Meridian ; and Report of a Committee thereupon, 591 



