CONTENTS. VII 



Page 



Mr. E. W. Brayley, Jun. on the probable Connection of Rock- 

 Basins, in Form and Situation, with an internal concretionary 

 Structure in the Rocks on which they occur : introduced by 

 Remarks on the alleged Artificial Origin of those Cavities 331 

 Mr. R. W. Fox on the Discharge of a Jet of Water under 



Water 342 



Prof. Bessel's Additions to the Theory of Eclipses, and the 



Methods of calculating their Results (continued) 342 



Mr. W. Hutton's Notes on the New Red Sandstone of the 

 County of Durham, below the Magnesian Limestone (con- 

 tinued) „ . „ 348 



Remarks on Mr. Babbage's Work " On the Decline of Science 



in England." 354 



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

 Geology which seem to bear most directly on theoretical 



Speculations (continued) 359 



Mr. J. S. Langton's Remarks on the Advantages which might 

 be expected to be derived from the Formation of Artificial 

 Climates in this Country; showing their Value to a numerous 

 Class of Invalids, the Conditions which should determine their 



Shape, Size, Locality, Arrangement and Structure, &c 362 



On the Arabic Names of the Stars 368 



New Books : — Rev. J. P. Jones and J. F. Kingston's Flora De- 

 voniensis ; — Lea's Observations on the Genus Unio. . . . 375 — 381 



Proceedings of the Horticultural Society 382 



Charring of Wood at Low Temperatures— Limits to Vaporiza- 

 tion 383 



Composition of Gunpowder 384 



Purple Powder of Cassius 385 



Analysis of Vegetable Products 386 



Arsenic in Sea Salt — Phosphuret of Sulphur 387 



Preparation of Phosphorus — Ammoniacal Deutochloride of 

 Titanium, by M. Rose — On an Alleged Error in the Calcu- 

 lations of the late Eclipse of the Moon 388 



Some Remarks on the Bushmen of the Orange River, by 



Lewis Leslie, Esq 390 



Aurora Borealis „ „ „ 392 



Astronomical Observations 393 



Lunar Occultations of fixed Stars by the Moon in November 

 and December 1830, Computed for Greenwich, by T. Hen- 

 derson, Esq. ; and circulated by the Astronomical Society 



— Scientific Books , 394 



New Patents t 395 



Meteorological Observations 397 



Calendar of the Meetings of the Scientific Bodies of London 

 for 1830-31 4,00 



NUMBER XL VIII.— DECEMBER. 

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



Geology, 



