CONTENTS. 



I. On the Quantity and Quality of the Gases disengaged from the Thermal Spring which 



supplies the King's Bath in the City of Bath. By Charles Daubeny, M.D. 

 F.R.S. Professor of Chemistry in the University of Oxford .... page 1 



II. On the Empirical Laws of the Tides in the Port of London ; with some Reflexions 



on the Theory. By the Rev. William Whewell, JI.M. F.R.S. Fellow and 

 Tutor of Trinity College, Cambridge 15 



III. On the Position of the North Magnetic Pole. By Commander J ames Clark Ross, 



R.N. F.R.S. F.R.A.S. F.L.S. S^c 47 



IV. Notice as to the supposed Identity of the large Mass of Meteoric Iron now in the 



British Museum, with the celebrated Otumpa Iron described by Rubin de Celis 

 in the Philosophical Transactions for 1786. Communicated in a Letter from 

 Woodbine Parish, Esq. F.R.S. to Charles Konig, Esq. Foreign Secretary 

 of the Royal Society ,53 



V. Experimental Researches in Electricity. — Sixth Series. By Michael Faraday, 



D.C.L. F.R.S. Fullerian Prof. Chem. Royal Institution, Corr. Memb. Royal 

 atid Imp. Acadd. of Sciences, Paris, Petersburgh, Florence, Copenhagen, 

 Berlin, 8^c. 8^c 55 



VI. Experimental Researches in Electricity. — Seventh Series. By Michael Faraday, 



D.C.L. F.R.S. Fullerian Prof Chem. Royal Institution, Corr. Memb. Royal 

 and Imp. Acadd. of Sciences, Paris, Petersburgh, Florence, Copenhagen, 

 Berlin, 8^c. 8^c 77 



VII. On the Theory of the Moon. By John William Lubbock, Esq. V.P. and 



Treas. R.S. 123 



VIII. On the Theory of the Mom. By John William Lubbock, Esq. F.P. and 



Treas. R.S 127 



