CONTENTS OF N« \0.—New Series. 



XLI. On the Figure of Equilibrium of a Homogeneous Planet in 

 a Fluid State ; in reply to the Observations of M. Poisson, published 

 in this Journal for July last. By J. Ivory, Esq. M. A. F.R.S. page 241 



XLII. Outlines of a Philosophical Inquiry into the Nature and 

 Properties of the Blood ; being the Substance of three Lectures on 

 that Subject delivered at the Gresham Institution during Michaelmas 

 Term 1826. By John Spurgin, M.D. Fellow of the Royal College 

 of Physicians of London, and of the Cambridge Philosophical So- 

 ciety 247 



XLIII. Collections in Foreign Geology.— [No. IV.] By H. T. De 

 tA Beche, Esq. F.R., L, and G.S. &c. &c 253 



XLIV. On Caustics. By Mr. H. Moseley, A.B. St. John's 

 College, Cambridge 263 



XLV. Reply to Mr. R. G. Taylor's Remarks on the Hypothesis 

 of Mr. Robberds on the former Level of the German Ocean. By 

 J. W, Robberds, Esq. Jun 271 



XL VI. Description of two remarkable Ores of Copper from Corn- 

 wall. By William Phillips, F.L.S. F.G.S. &c. With an Analysis 

 of the same, by M. Faraday, Esq. F.R.S. &c 286 



XL VII. Remarks on Col. Miller's Plan for Mooring Ships in Road- 

 steads. By Mr. J. P. De la Pons 289 



XL VIII. On the Adhesion of Screws. By B. Bevak, Esq. Civil 

 Engineer 291 



XLIX. " Dr. Price andhis Followers." (See Phil. Trans, for 1826. 

 Part iii. p. 297.) 292 



L. On the Natural Embarkments formed against the German 

 Ocean on the Norfolk and Suffolk Coast, and the Silting up of some of 

 its iEstuaries. By R. C. Taylor, Esq. F.G.S. ( With an Engraving. ) 295 



LI. Proceedings of the Royal Academy of Sciences of Paris. 305 



LIl. Intelligence and Miscellaneous Articles:— Duty of Steam- 

 Engines: On the Use of Chlorine in destroying Fire-Damp: Mineral 

 Waters of Bilin : Analysis of Allophane: Indigo Copper-Ore: Specific 

 Heat of Gases : Composition of Apatite : Notice of Fossil Trees, near 

 Gallipolis, Ohio ; By Dr. S. P. Hildreth : On the Fascination of 

 Snakes ; By Mr. Nash : Fossil Remains of the Mastodon lately found 

 in Ontario County, New- York ; Sulphocyanuret of Potassium in 

 Saliva; New Patents; Meteorological Observations, Table, &c. 309—320 



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

 post paid, to the Care of Mr. R. Taylor, Printer, [ied-Lioii-Court, Fleet- 

 Street, London. 



