CONTENTS 

 OF THE SIXTY-FOURTH VOLUME. 



On Professor Dcebereiner's new Mode of producing Fire. 

 By Dr. J. S. C. Schweigger Page 3 



Description of a Hydro-pneumatic Pump for compressing Gases 

 or other elastic Fluids. By Mr. Samuel Seaward . 12 



Introduction to the Sixth Section o/'Bessel's Astronomical Ob- 

 servations. 1 7 



On the Corrosion of Copper Sheeting by Sea- Water, and on 

 Methods of preventing this Effect; and on their Application 

 to Ships of War and other Ships. By Sir Humphry Davy, 

 Bart. Pres. R.S 30 



Solution of a Geodetical Problem. By J. Ivory, Esq. M.A. 

 F.R.S. 35 



Analyses of a Series of Papers on the Structure, Distribu- 

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

 which have appeared in some late Volumes of the Philosophical 

 Transactions 41,119,353,442 



Some Observations on the Migration of Birds. By the late 

 Edward Jenner, M.D. F.R.S. -, with an Introductory Let- 

 ter to Sir Humphry Davy, Bart. Pres. R.S., by the Rev. 

 G. C. Jenner 50, 91 



Observations on the Mesembryanthema barbata. By A. H. 

 Hawo rth, Esq. F.L.S. %c 61,109 



The Theory of Vegetable Physiology of M. Aubert du Petit 

 Thouars,- or of the Increase of Plants by means of Buds, 

 or fixed Embryos. By John Lindley, Esq. F.L.S. . 81 



On the Extraction of Selenium from the Residuum of the Sid- 

 phuric Acid Works of Lukawitz in Bohemia ; and on the 

 Cause of the Odour of Tellurium. By Professor Scholz, of 

 the Polytechnic Institution of Vienna 83 



Hints towards the Natural History of the Toad. By William 



FoTHERGILL, Esq 85 



Introduction to the Seventh Section of Bessel's Astronomical 

 Observations 102,170,249,341,415 



An Account of the Mesembryanthema ringentia. By A. H. Ha- 

 woiitii, Esq. F.L.S. 8gc 109 



A Sketch of the Progress of Science respecting Igneous Meteors 

 Vol. 64. a 



