CONTENTS. 



Page 

 On M. Hansteen's recent Magnetic Observations in Siberia, In a 

 Letter to Professor Renwick, of New York, by Captain Edward 

 Sabine, R.A., Secretary of the Royal Society, &c. . . 1 



Experiments on the Force of the Earth's Magnetism. By Captain 

 E. Sabine, &c. . . . .14 



A remarkable Phenomenon of Sound, and of the conveyance of 

 minutely divided Matter during the Eruption of Mount SoufFre in 

 1812. By John Hancock, M.D. . . .31 



On Classifications of Rocks. By John Mac Culloch, M.D., 

 F.R.S., &c. . . . . .34 



Remarks on the Worari and Sirvatan. By John Hancock, M.D. 50 

 On a Method of Cultivating Plants in Walls, for Ornaments ; with 

 a Catalogue of those which succeed under this treatment . 53 



On the Construction of the Galvanic Battery. By Robert Green- 

 how, Esq. t . . . ,71 



A short Account of Experimental Researches on the Diffusion of 

 Gases through each other, and their Separation by Mechanical 

 Means. By Thomas Graham, A.M., F.R.S.E., Lecturer on 

 Chemistry, Glasgow . . . • .74 



Observations on the Oxidation of Phosphorus. By Thomas Gra- 

 ham, A.M., &c. . '•. v . '*'' ., . . .83 



Notice of a singular Inflation of a Bladder . . . .88 



Account of an Apparatus for ascertaining the value of different 

 Alkalis. By W. G. Colchester, Esq. . . .89 



Memoir on the Mean Results of Observations; read before the 

 Academy of Sciences, April 20, 1829. By M. Poisson . 91 



On a Method of rendering Platina malleable. (The Bakerian Lec- 

 ture.) By the late William Hyde Wollaston, M.D., F.R.S., 

 &c. . . . . .97 



On Acromatic Telescopes. By Signor G. Santini, Director of the 

 Observatory at Padua . . . .106 



Travels in Turkey, Egypt, Nubia, and Palestine, &c, in 1824, 5, 6, 

 and 7. By R. R. Madden, Esq., M.R.C.S. (reviewed) . .113 



Further Recommendations respecting the Use of Lights in the 

 Cornish Fisheries. By J. Mac CuLLocri,M.D., &c. . . 133 



On Cookery in general, and on the Works of Jarrin and Ude in 

 particular . . . . . .137 



List of the Works of the late Sir Humphry Davy, Dr. Wollaston, 

 and Dr. Thomas Young . . . .149 



