xvi 



Philosophical Transactions for 1833. By Sir David Brewster, K.H. 

 LLD. F.R.S page 365 



Discussion of Tide Observations made at Liverpool. By J. W. 

 Lubbock, Esq., M.A. F.R.S 368 



Geometrical investigations concerning the Phaenomena of Terrestrial 

 Magnetism : Second Series. — On the Number of points at which a 

 magnetic needle can take a position vertical to the Earth's surface. 

 By Thomas Stephen Davies, Esq. F.R.S. Lond. and Edin. F.R.A.S. 

 of the Royal Military Academy, Woolwich 368 



Memoir on the Metamorphoses in the Macroura, or Long-tailed Crus- 

 tacea, exemplified in the Prawn (Palcemon serratus). By John V. 

 Thompson, Esq. F.L.S. Deputy Inspector-General of Hospitals ... 371 



On Voltaic Combinations. By John Frederick Daniell,Esq. F.R.S. 

 Professor of Chemistry in King's College, London 371 



On an artificial Substance resembling Shell. By Leonard Horner, 

 Esq. F.R.S. L. & Ed. : with an account of the examination of 

 the same. By Sir David Brewster, K.H. LL.D. F.R.S. &c 375 



Researches on the Tides. Fifth Series : On the Solar Inequality and 

 on the Diurnal Inequality of the Tides at Liverpool. By the Rev. 

 William Whewell, F.R.S. Fellow of Trinity College, Cambridge ... 377 



Report of Magnetic Experiments tried on board an Iron Steam- Vessel 

 by order of the Right Hon. the Lords Commissioners of the Admi- 

 ralty. By Edward J. Johnson, Esq. Commander, R.N., accom- 

 panied by plans of the vessel, and tables showing the horizontal 

 deflection of the Magnetic Needle at different positions on board, 

 together with the dip and magnetic intensity observed at those 

 positions, and compared with that obtained on shore with the same 



instruments 378 



Researches on the Integral Calculus. Part I. By Henry Fox Talbot, 

 Esq. F.R.S 380 



On the reciprocal attractions ofpositive and negative electric Currents, 

 whereby the motion of each is alternately accelerated and retarded. 

 By P. Cunningham, Esq. Surgeon R.N 381 



Meteorological Journal kept at Allenheads, near Hexham. By the 

 Rev. William Walton 381 



On the Temperatures and Geological Relations of certain Hot Springs, 

 particularly those of the Pyrenees ; and on the Verification of Ther- 

 mometers. By James David Forbes, Esq. F.R.S. Professor of 

 Natural Philosophy in the University of Edinburgh \ 382 



Additional Observations on Voltaic Combinations. By J. Frederick 

 Daniell, Esq. F.R.S. Professor of Chemistry in King's College, 

 London 385 



On certain parts of the Theory of Railways ; with an investigation of 

 the formulae necessary for the determination of the resistances to the 

 motion of carriages upon them, and of the power necessary to work 

 them. By the Rev. Dionysius Lardner, LL.D. F.R.S 385 



Register of the State of the Barometer and Thermometer kept at 

 Tunis, during the years 1829, 1830, 1831 and 1832 388 



On the Optical Phenomena of certain Crystals. By Henry Fox 

 Talbot, Esq. F.R.S 388 



