XU CONTENTS. 



On a Xew Method in the Conic Sections. By J. Scott Russell, 

 Esq., 217 



Discussion of one year's Observations of Thermometers sunk to dif- 

 ferent depths in different localities in the neighbourhood of Edin- 

 biu-gh. By Professor Forbes, ..... 223 



On the Law which connects the Elastic Force of Vapour with its 

 Temperature. B3' John Scott Russell, Esq., . . . 227 



Abstract of a Paper on Results of Observations made with \Vhe- 

 well's Xew Anemometer. By Sir John Ranken. Communicated 

 by Professor Forbes, ...... 231 



Notice respecting an Intermitting Brine Spring discharging Car- 

 bonic Acid Gas, near Eassingen in Bavaria. By Professor Forbes, 233 



Notice on the Geology of Gottland, from the observations of Mr 

 Laing. By Dr Traill, ...... 236 



Notice regarding some points in Hydrodynamics that have been 

 misunderstood. By J. Scott Russell, Esq., . . . 238 



On the Colour of Steam under certain circumstances. By Pro- 

 fessor Forbes, ....... 242 



On the Meaning of the Homeric terms hym, iixn, nfiri, voivv, with 

 their more important compounds and derivatives. By the Vener- 

 able Archdeacon "Williams, ..... 243 



The Colours of the Atmosphere considered with reference to a 

 paper " On the Colour of Steam under certain circumstances," 

 read at the last meeting of the Royal Society. By Professor 

 Forbes, . • ..... 244 



Notice of some observations made during the Storm of January 

 1839. By J. Scott Russell, Esq., . . . .246 



On Fresnel's Law for the Intensity of Reflected and Refracted 

 Light. By Professor Keliand, . . . .246 



On a New Galvanic Batter}-, and an Improved Voltameter. By 

 Martyn Roberts, Esq. Communicated by Sir John Robison, 248 



Notice upon the xVlcoholic Strength of U'ines. By Dr Christison, 249 



Notice respecting the Drying-up of the Rivers Teviot, Clyde, and 

 Nith, and their Tributaries, on 27th November 1338. By David 

 Milne, Esq., ....... 252 



Memorandum on the Intensity of Reflected Light and Heat. By 

 Professor Forbes, ...... 254 



On the Theory of the Motion of "Waves. By Professor Keliand, 258 



On a new method of shewing the unequal Expansion of Crystals. 

 By Professor Forbes, ...... 259 



On the Diminution of Temperature with Height in the Atmosphere 

 at dilFerent seasons of the year. By Professor Forbes, . 259 



Notice respecting the relative Voltaic Agency of Circuits of Cop- 

 per and Zinc, and Zinc and Iron. By Martyn Roberts, Esq., 261 



Investigation of Analogous Properties of Co-ordinates of Elliptic 

 and Hyperbolic Sectors. By W. Wallace, LL.D., Emeritus 

 Professor of ilathematics, L'^niversitj- of Edinburgh, . . 262 



On the Newer Tertiary or Pliocene Deposites of Scotland. By 

 James Smith, Esq., of Jordaphill, .... 263 



