IV CONTENTS. 



Page 



NUMBER L. FEBRUARY. 



Prof. Encke on the Construction of the Berlin Astronomical 



Ephemeris for 1832 81 



Mr. N. J. Winch's Remarks on the Geology of the Banks of 

 the Tweed, from Carham, in Northumberland, to the Sea 



Coast at Berwick 85 



Mr.J. W. Lubbock on the Limits upon the Earth's Surface 

 within which an Occultation of a Star or Planet by the Moon 



is visible 90 



Tables of the Decimal Parts of a Day and an Hour 92 



Mr. R. W. Fox on the alleged Production of Heat in Mines 

 by the Condensation of the Air which ventilates them ; and 

 on the Fallacy of other Objections to the Opinion that a 



high Temperature exists in the interior of the Globe 94? 



Mr. J. W. Lubbock on the Stability of the Solar System .... 99 

 Rev. T.Moore's Remarks on the Origin of Rock-basins; in 



reply to a Paper by Mr. E. W. Brayley, jun 101 



Rev. W. D. Conybeare's Examination of those Phenomena of 

 Geology which seem to bear most directly on theoretical 



Speculations (continued) Ill 



Mr. S. Sharpe on the tidelike Wave of Lake Ontario 117 



Dr. A. Smith's Observations relative to the Origin and History 



of the Bushmen (continued) 119 



Mr. W. Sturgeon's Account of an Aurora Borealis observed 



at Woolwich on the Night of January 7th, 1831 127 



New Books: Mr. De la Beche's Sections and Views illustra- 

 tive of Geological Phenomena 131 



Proceedings of the Royal Society 133 



Geological Society 134? 



Linnaean Society 138 



. Astronomical Society 138 



. Zoological Society 14-0 



On the Spontaneous Inflammation of Powdered Charcoal 148 



On Pure lodic Acid and the Detection of the Vegetable Al- 

 kalies Para-Tartaric Acid On the Chlorides of Iodine 



and the Detection of the Vegetable Alkalies 149 



Chloride of Gold and Potassium, &c. Vauquelin's Process for 



obtaining Chromium 150 



Carburet of Sulphur not decomposed by Electricity Influ- 

 ence of the Aurora Borealis on the Magnetic Needle Ni- 

 trous Atmosphere of Tirhoot 151 



On the Occurrence of Chalk- Flints in Banffshire, by J. Christie, 



Esq 152 



New Scientific Books The Comet 154- 



Lunar Occultations of Planets and fixed Stars by the Moon, 

 in February 1831. Computed for Greenwich, by T. Hender- 

 son, Esq. ; and circulated by the Astronomical Society 156 



New Patents 157 



Meteorological Observations 158 



NUMBER 



