Xil 



Thirteenth Series of Tide Researches. By the Rev. William Whewell, 

 B.D. F.R.S page 728 



1848. 



On Terrestrial Magnetism. By William A. Norton, A.M. M.A.P.S., 



Professor of Mathematics and Natural Philosophy in Delaware 

 College, United States of America 730 



On the Disruptive Discharge of accumulated Electricity, and. the Prox- 

 imate Cause of Lightning. By Isham Baggs, Esq. 731 



On the Heat disengaged during Metallic Substitutions. By Thomas 

 Andrews, M.D. M.R.I. A., Vice-President of Queen's College, 

 Belfast, &c 732 



On Galvanic Currents existing in the Blood. By James Nevv'^ton 

 Heale, Esq., Licentiate of the Royal College of Physicians, and 

 Fellow of the Royal College of Surgeons of England 732 



Examination of the Proximate Principles of the Lichens. By John 

 Stenhouse, Esq. Ph.D , 735 



On a Formula for the Elastic Force of Vapour at different Tempera- 

 tures. By Captain Shortrede 738 



On the Moist-Bulb Problem. By Captain Shortrede 740 



Experiments on the influence of Magnetism on Polarized Light. By 

 Professor Carlo Matteucci 741 



On the Corrections necessary to be applied to Meteorological Obser- 

 vations made at particular periods, in order to deduce from them 

 Monthly Means. By James Glaisher, Esq., of the Royal Observa- 

 tory 743 



Report of Experiments made on the Tides in the Irish Sea ; on the 

 similarity of the Tidal phenomena of the Irish and English Chan- 

 nels ; and on the importance of extending the experiments round 

 the Land's- End and up the English Channel. Embodied in a letter 

 to the Hj^drographer, by Captain F. W. Beechey, R.N. F.R.S 743 



Observations on some Belemnites and other fossil remains of Cepha- 

 lopoda, discovered by Mr Reginald Neville Mantell, C.E., in the 

 Oxford Clav, near Trowbridge in Wiltshire. By Gideon Algernon 

 Mantell, Esq. LL.D. F.R.S., Vice= President of the Geological So- 

 ciety 746 



Chemical Researches on the Nature of Wax. By Benjamin Collins 

 Brodie, Esq 748 



A statement of the working of the Compasses on board the Honorable 

 East India Company's Iron Steamer Pluto, from September 1841, 

 on her passage from England to China, and during her service in 

 those seas, until her arrival at Calcutta in January 1843. By John 

 Tudor, Commander R.N 749 



Practical Remarks on Annealing Flint-Glass. By Apsley Pellatt, Esq., 

 of the Falcon Glass Works, Holland Street 750 



Determinations of the Magnetic Inclination and Force in the British 

 Provinces of Nova Scotia and New Brunswick in the summer of 

 1847. By Professor George W. Keely, of Waterville College, Maine, 

 United States 751 



