TAYLOR'S SCIENTIFIC MEMOIRS, translated from Foreign 

 Journals and the Transactions of Foreign Academies : Part VII. is just 

 published, containing : — 



Gauss — Terrestrial Magnetism. 



Excke — Method of Least Squares. 



Heinrich Rose — iEtherification. 



Bessel — Elliptic Spheroid of Revolution, representing measured Arcs of the 

 Meridian. 



'Ohm — Mathematical investigation of the Galvanic Circuit. 



With Eight Plates, illustrative of the Theories of Terrestrial Magnetism and of 

 the Galvanic Circuit. 



THE LONDON, EDINBURGH, AND DUBLIN 

 PHILOSOPHICAL MAGAZINE, and JOURNAL OF SCIENCE: 



CONDUCTED by 



SIR DAVID BREWSTER, F.R.S., RICHARD TAYLOR, F.L.S., 

 RICHARD PHILLIPS, F.R.S., and ROBERT KANE, M.D., M.R.I.A. 

 Contents of No. 108, for AUGUST 1840. 



ON the Theory of the Dark Bands formed in the Spectrum from partial Inter- 

 ception by Transparent Plates. By the Rev. Baden Powell, M.A., F.R.S., 

 F.G.S., F.R.Ast.S., Savilian Professor of Geometry in the University of Oxford. 



On the Potatoe Spirit Oil of the French Chemists. By James Apjohn, M.D., 

 M.R.I.A., Professor of Chemistry in the Royal College of Surgeons, Dublin. 



Observations on the Climate of Italy and other Countries in ancient times. 



Mineralogical Notices. Communicated by W. H. Miller, Esq., Professor of 

 Mineralogy in the University of Cambridge. 



Observations on Elceolith and Nepheline. By Theodore Scheerer. 



On the Theoretical Constitution of the Compounds of Ammonia. By Robert 

 Kane, M.D., M.R.I.A. 



On the Composition of Inulin. By Mr. E. A. Parnell. 



On certain Effects of Temperature. By C. T. Coathupe, Esq. 



Remarks on some Tide Observations, published in the Transactions of the Bri- 

 tish Association. By Richard Thomas, Civil Engineer. 



Observations on the Blood Corpuscles, or Red Particles, of the Mammiferous 

 Animals. By George Gulliver, F.R.S., F.Z.S., Assistant Surgeon to the Royal 

 Regiment of Horse Guards. 



Proceedings of Learned Societies, numerous Miscellaneous Articles, and Me- 

 teorological Observations and Table. 



R. and J. E. Taylor, Red Lion Court, Fleet Street. 



