CONTENTS OF N« 59.— iV^ Series, 



XLI. On Vanadium. By M. Berzelius {To he continued).. . page 321 



XLII. Particulars of the Measurement, by various Methods, of 

 the Instrumental Error of the Horizon-Sector described in Phil. 

 Mag. vol. lix. By J. Nixon, Esq. ( To be continued) 537 



XLIII. Notice on Oxalic Acid. By Edward Turner, M.D. 

 F.R.S. L. & E. &c., Professor of Chemistry in the University of 

 London 348 



XLIV. On a New Register- Pyrometer, for Measuring the Ex- 

 pansions of Solids, and determining the higher Degrees of Tempera- 

 ture upon the common Thermometric Scale. By J. Frederic 

 Daniell, Esq. F.R.S 350 



XLV. Correction of a Quotation in a Paper " On the Impediments 

 to the Study of Natural History," published in the Phil. Mag. and 

 Annals for May, 1831 , By W. S. MacLeay, Esq. M.A. F.L.S., &c. 357 



XL VI. Notice of a Geological Survey of the Mines of Cornwall ; 

 with a Programme of an intended Arrangement of the leading De- 

 tails of the Metalliferous Veins, &c. By W. JoRY Henwood, F.G.S. 358 



XL VII. Experiments on the Disinfecting Powers of increased 

 Temperatures, with a view to the Suggestion of a Substitute for 

 Quarantine. By William Henry, M.D. F.R.S. &c 363 



XL VIII. Notices respecting New Books: — Mr. Rennie's Edition 

 of Montagu's Ornithological Dictionary; Dr. Paris's Life of Sir 

 Humphry Davy, Bart. ( To be continued) 370-386 



XLIX. Proceedings of Learned Societies : — British Association 

 for the Promotion of Science; Zoological Society 387-392 



L. Intelligence and Miscellaneous Articles : — On the Atomic 

 Weight of Barytes, by Dr. Thomson ; On the Oxichlorates, by 

 M. Serullas ; Occultations of Planets and Fixed Stars by the Moon 

 in November 1831 ; Meteorological Observations for September 

 1831 ; Table, &c. ; Calendar of the Meetings of the Scientific Bodies 

 of London for 1831-32 392-400 



It 18 requested that all Communications for this Work may be addressed, 

 post paid, to the Care of Mr. R. Taylor, Printing Office, Red Lion Court, 

 Fleet Street, London ; where complete Sets of the Old Series of the Phi- 

 losophical Magazine may be had at half of the original price. 



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