CONTENTS (continued). 



•PAGE 



VII. Volcanic Energy : an attempt to develope its true Origin and Cosmical 



Eelations. By Robeet Mallet, F.R.S 438 



VIII. On some Properties of Anhydrous Liquefied Ammonia. By G. Goee, 



F.R.S. 441 



IX. On the Physical Nature of the Coagulation of the Blood. By Alpeed 



Hutchison Smee, F.C.S., F.S.S 442 



X. On the Detection of Organic and other Nitrogenized Matter existing in 



the Atmosphere. By Alpeed Hutchison Smee, F.C.S., F.S.S. . . . 442 



XI. Contributions to Terrestrial Magnetism. — No. XIII. By General Sir' 

 . Edwaed Sabine, K.C.B., V.P.R.S 443 



XII. On the Law of Extraordinary Refraction in Iceland Spar. By G. G. 



Stokes, M.A., Sec. R.S 443 



XIII On a Voltaic Standard of Electromotive Force. By Latimee Claek, 



M.I.C.E. 444 



The following, read at the same Meeting s will appear in No. 137. 



XIV. Report on the Exploration of Brixham Cave, conducted by a Committee 

 of the Geological Society, and under the immediate Superintendence of 

 William Pengelly, Esq., F.R.S., aided by a Local Committee. With 

 Descriptions of the Organic Remains by Geoege Busk, Esq., F.R.S., 

 and of the Flint Implements by John Evans, Esq., F.R.S. By Joseph 

 Peestwich, F.R.S., F.G.S., &c, Reporter. 



XV. On the Combined Action of Heat and Pressure upon the Paraffins. By 

 T. E. Thoepe and John Young, of the Andersonian University, Glasgow. 



XVI. On the Echinoidea of the 1 Porcupine ' Deep-sea Dredging Expeditions. 

 By Prof. Wtville Thomson, M.D., LL.D., F.R.S. 



XVII. Pyrology, or Fire Chemistry. By Capt. W. A. Ross, R.A. 



XVIII. Researches on the Atomic Weight of Thallium. By William Ceookes, 

 F.R.S. 



XIX. On Supersaturated Saline Solutions. By Aechibald Liveesldge, Assoc. 

 R.S. Mines, and Scholar of Christ's College, Camb. 



XX. On the Spectrum of Nitrogen. By Aethue Schustee, Student at the 

 Physical Laboratory of Owens College. 



XXI. Note relating to the Abstraction of Spheroids. By I. Todhuntee, M.A., 

 F.R.S. 



XXII. An Experimental Inquiry on the Action of Electricity on Gases. — I. On 



the Action of Electricity on Oxygen. By Sir Benjamin Collins 

 Beodie, Bart., M.A., D.C.L., F.R.S. 



XXIII. On the Approximate Geometrical Solutions of the Problems of the Dupli- 



cation of the Cube, and of the Quadrature of the Circle. By William 

 Hayden. 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



