CONTENTS. 



On Electro-Magnetism. By Mr. W. Sturgeon . . 242 



An improved Demonstration of Sir Isaac Newton's Binomial 

 Theorem, on Fluxional Principles, more especially calculated 

 for the young Student in Mathematics. By the Rev. L. Evans, 

 F.R.S. and A.S. fyc. . . 270 



Remarks on the Gothic Ornaments of the. Duomo, Battistero, and 

 Campo Santo of Pisa. By Arthur Taylor, Esq. F.S.A. 

 Member of the Roman Academy of Arcadians . . . 273 



On the Local Attraction of Vessels. — In a Letter from Admiral 

 Krusenstern of the Imperial Russian Navy to Peter 

 Barlow, Esq. F.R.S. 283 



Reply to Mr. Samuel Cooper's Queries on finding the exact 

 Mean Solar Time. By Glosterian 205 



On the Weights and Measures. By M/'.Tho 5 Tredgold 302 



Contributions to our Knowledge of Chemical Bodies. By Mr. 

 W. Herapath 321 



On the Calculus of Variations. By John Walsh, Esq. . 330 



On the Transformation of the Solutions of a Periodical Func- 

 tional Equation. By John Herapath, Esq. . . . 333 



Statement on the part of the Monthly Critical Gazette respecting 

 the Review of Sir J. E. Smith's English Flora in that Pub- 

 lication. By A Correspondent 339 



On finding the exact Mean Solar Time. By M. Smith, Esq. 350 



On finding the Latitude by the Altitudes of two Stars. By 

 M. Smith, Esq 351 



Apparent Right Ascension and Declination of the four Minor 

 Planets, at and about their ensuing Opposition. By S. 

 Groombridge, Esq 359 



On Weights and Measures, and on numerical Notations, in Reply 

 to Mr. Tredgold. By Decaphilus 362 



On some Extraordinary Inconsistencies in the Greenwich Ob- 

 servations for 1821. By S. Lee, Esq. . . . 367, 4-51 



On some Observations in the Meteorological Register. By 

 W. Burney, LL.D 370 



On the Electro-motive Actions of Water and Liquids in general 

 on Metals : and of the electric Effects which take place— first, 

 in the Contact (f certain Flames and Metals ,• secondly, in 

 Combustion. By M. Becquerel, Ancien Chef dc Bataillon 

 du Genie 401 



On a new Fossil Genus, of the Order Enalio Sauri {of Cony- 

 beare) : and on a new Species ^"Ichthyosaurus. By It. Har- 

 lan, M.D. With a Note by the Rev. W. D. Conybeare. 



409 



On Lava found on the Sands near Boulogne. By Robert 

 Bakewell, Esq 414 



