CONTENTS OF N 49. New Series. 



I. Reply to a Note in the Rev. Mr. Conybeare's Paper entitled 

 " An Examination of those Phenomena of Geology, which seem 

 to bear most directly on theoretical Speculations." By C. LYELL, 

 Esq. F.R.S. For. Sec. G.S. &c page I 



II. Memoir of the late J. S. Miller, A.L.S. Curator of the Mu- 

 seum of the Bristol Philosophical Institution. By A CORRESPON- 

 DENT 4 



III. On the theoretical Determination of the Motion of Fluids. 

 By the Rev. J. CHALLTS, Fellow oif Trinity College, Cambridge, and 



of the Camb.Phil. Soc 7 



IV. Remarks on the Geology of the Banks of the Tweed, from 

 Carham, in Northumberland, to the Sea Coast at Berwick. By 

 N. J. WINCH, Esq. Secretary of the Natural History Society of 

 Newcastle-iipon-Tyne. (To be continued.) 11 



V. An Examination of those Phenomena of Geology which 

 seem to bear most directly on theoretical Speculations. By the Rev. 



W. D. CONYBEARE, M.A. F.R.S. F.G.S. &c. (To be continued) 19 



VI. On the New Nautical Almanac 23 



VII. On the Visitation of Greenwich Observatory: with a Copy 



of the New Warrant 27 



VIII. Examination of a Native Sulphuret of Bismuth. By Mr. 



R, WARRINGTON 29 



IX. Recent Discovery of the Ladder of M. de Saussure in the Mer 

 de Glace ; with Inferences respecting the Progressive Movement of 

 Glaciers , 32 



X. Facts and Observations relating to the Theory of the progres- 

 sive Development of Organic Life. By ROBERT BAKEWELL, Esq.. . 33 



XL Proceedings of Learned Societies : Royal Society ; Linnaean 

 Society; Geological Society ; Zoological Society 37-66 



XII. Intelligence and Miscellaneous Articles ; Chloroxalic Acid ; 

 Potash from Felspar ; Native Phosphates of Manganese and Iron ; 

 On Oxamide, by M. Dumas ; On two Kinds of Fulminating Gold, 

 by M. Dumas ; On the State of Mercury in Mercurial Ointment, by 

 M. Mitscherlich j Mr. Bennet's New Alloy for the Pivot Holes of 

 Watches ; Earthquakes at the Cape of Good Hope ; List of New Pa- 

 tents ; Meteorological Observations for November 1830, Table, &c. 66-80 



%* It is requested that all Communications for this Work may be addressed, 

 post paid, to the Care of Mr. R. Taylor, Printing Office, Red Lion Court, 

 Fleet Street, London; where complete Sets of the Old Series of the Phi- 

 losophical Magazine may be had at half of the original price. 



