Vol.64. Philosophical Magazine. December 1821. 



Contents of Numbkr 320. 



LXX. 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 of certain Flames and Metals; secondly, in 

 Combustion. By M. Becquerel, Ancien Chief de Bataillon du 

 G6nie '• P a g e ' 101 



LXXI. On a new Fossil Genus, of the Order Enalio Sauri (of 

 Conybeare) : and on a New Species of Ichthyosaurus. By R. 

 Harlan, M.D • 4" 9 



LXXII. On Lava found on the Sands near Boulogne. By Robert 

 Bakjjwell, Esq 414 



LXXIII. Introduction to the Seventh Section of Bessel's As- 

 tronomical Observations 415 



LXXIV. Decas tertia novarum Plantarum Succulentarum ; A third 

 Decade of new Succulent Plants. By A. H. Haworth, Esq. 

 F.L.S.,&c , 423 



LXXV. Tables for facilitating the Calculation of the Mean Time 

 of the Passage of Stars over the Meridian ; for the Use of those who 

 observe by Clocks or Chronometers showing Mean Solar Time. 

 Computed by Mr. P. Lecount. 428 



LXXVI. Meteorological Register kept at Wick in the County of 

 Caithness, near the Northern Extremity of Scotland, in the Year 1823. 431 



LXXVII. On a Hydro-pneumatic Pump. By Mr. Samuel 

 Seaward 441 



LXXVIII. Analyses of a Series of Papers on the Structure, Distri- 

 bution, and Functions of the Nerves; by Charles Bell, Esq.; which 

 have appeared in some late Volumes of the Philosophical Transactions. 

 (Concluded). , • •' 44,C - 



LXXIX. On some extraordinary Inconsistencies in the Greenwich 

 Observations for 1821. By S. Lee, Esq 451 



LXXX. Upon the System of Vegetable Physiology of M. Au- 

 bert du Petit Thouars : in Reply to Sir Jas. Edw. Smith. By 

 J. Lindley, Esq. F.L.S. &c 456 



LXX XI. Notices respecting New Books 457 



LXXXII. Proceedings of Learned Societies:— Royal Society, Lin- 

 naean Society, Geological Society, Astronomical Society ; and Royal 

 Academy of Sciencesof Paris 459 — 461 



LXXIII. Intelligence and Miscellaneous Articles : — Account of an 

 Examination of Fused Charcoal ; by Lardner Vanuxem ; Exist, 

 ence of the Chalk Formation in North America; The Trumpeter- 

 Bird a true Ventriloquist; Granite columns; Calendar of Flora, 

 Fauna, and Pomona ; New Patents; Meteorological Table .... 467 — 472 



%* Communications for this Work, received by the Editors, 

 38 Shoe-Lane, will meet with every attention. 



KICIIARD TAYLOR, PKINTER, SHOE-LANE, LONDON. 



