VI 



Page 



Experimental Researches on the Functions of the Vagus and the 

 Cervical Sympathetic Nerves in Man. By Augustus W aller, M.D., 

 F.R.S. ....:.., 302 



On the Double Tangents of a Curve of the Fourth Order. By Arthur 

 Cayley, Esq., F.R.S 304 



Notes on the Atmospheric Lines of the Solar Spectrum, and on certain 

 Spectra of Gases. By Dr. John Hall Gladstone, F.R.S 305 



On Great Fluctuations of Temperature in the Arctic Winter. By 

 J. J. Murphy, Esq 309 



On the Measurement of Electric Resistance. By Professor W. 

 Thomson, F.R.S 313 



On the Heat which is developed at the Poles of a Voltaic Battery 

 during the passage of Luminous Discharges in Air and in Vacuo. 

 By John P. Gassiot, Esq., F.R.S 329 



Contributions to the Physiology of the Liver. The Influence of 

 an Acid in producing Saccharine Urine. By F. W. Pavy, M.D. . . 335 



On the Chemical and Physical Conditions of the Culture of Cotton. 

 By J. W. MaUet,Ph.D 340 



Account of Experiments made at Holyhead (North Wales) upon 

 the Transit-Velocity of Waves through the Local Rock Formations. 

 By Robert Mallet, Esq., C.E., F.R.S. 352 



On the Cutaneous Sensibility of the Hand and Foot in different parts 

 of the Surface, as tested by the Continuous Galvanic Current. By 

 Harry Lobb, Esq. 356 



Experiments and Observations on the Structure and Function of the 

 Stomach in the Vertebrate Class. By William Brinton, M.D. . . 357 



Notes of Researches on the Intimate Structure of the Brain. Second 

 Series. By J. Lockhart Clarke, Esq., F.R.S 359 



On the Influence of Atmospheric Pressure upon some of the Pheno- 

 mena of Combustion. By Dr. Edward Frankland, F.R.S 366 



On the Anatomy and Physiology of the Spongiadse. Part II. By 

 J. S. Bowerbank, LL.D., F.R.S 372 



Further Observations upon the Nebulae, with practical details relating 

 to the Construction of Large Telescopes. By the Earl of Rosse, 

 F.R.S 375 



Observations on the Posterior Lobes of the Cerebrum of the Quadru- 

 mana, with a Description of the Brain of a Galago. By William 

 H. Flower, Esq 376 



On Liquid Transpiration in relation to Chemical Composition, By 

 Thomas Graham, Esq., V.P.R.S 381 



Electro-Physiological Researches. Eleventh Series. On the Second- 

 ary Electromotor Power of Nerves, and its Application to the Ex- 

 planation of certain Electro-Physiological Phenomena. By Pro- 

 fessor C. Matteucci 384 



Supplement to Two Papers published in the Philosophical Trans- 

 actions (1820 and 1825) on the Science connected with Human 

 Mortality. By Benjamin Gompertz, Esq., F.R.S 390 



