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On the Corrections for Latitude and Temperature in Barometric Hvpso- 

 metry, with an improved form of Laplace's formula. By Alexander J. 

 Ellis, F.R.S 274 



On the Elasticity and Viscosity of Metals. By Prof. W. Thomson. LL.D., 

 F.R.S., F.R.S.E ; .289 



On Two New Forms of Heliotrope. By W. H. Miller, M.A., For. Sec. R.S., 

 and Professor of Mineralogy in the "University of Cambridge 297 



Annual Meeting for the Election of Fellows 299 



Communication from the President and Council of the Royal Society to the 

 Board of Trade on the subject of the Magnetism of Ships 300 



Correspondence between the Board of Trade and the Royal Society in 

 reference to the Meteorological Department '. 306 



Letter of Professor Dove on Meteorological communications, &c 317 



Description of a Rigid Spectroscope, constructed to ascertain whether the 

 Position of the known and well-defined Lines of a Spectrum is constant 

 while the Coefficient of Terrestrial Gravity under which the Observations 

 are taken is made to vary. By J. P. Gassiot, V.P.R.S 320 



A Description of some Fossil Plants, showing structure, found in the Lower 

 Coal-seams of Lancashire and Yorkshire. By E. W. Binney, F.R.S 327 



On Symbolical Expansions. By W. H. L. Russell, Esq., A.B 329 



On the Summation of Series. By W. H. L. RusseU, Esq., A.B 332 



On a Theorem concerning Discriminants. By J. J. Sylvester, F.R.S 836 



Some Observations on Birds, chiefly in relation to their Temperature, with 

 Supplementary Additions. By John. Davy, M.D., F.R.S., &c 337 



On the Heating of a Disk by rapid Rotation in vacua. By Balfour Stewart, 

 M.A., F.R.S., and P. G. Tait, M.A 339 



On the Fossil Mammals of Australia. Part II. Description of an almost 

 entire Skull of Thylacoleo carnifex, Ow. By Professor Owen, F.R.S., &c. 343 



On the Normal Circulation and Weight of the Atmosphere in the North and 

 South Atlantic Oceans, so far as it can be proved by a steady Meteorolo- 

 gical Registration during five Voyages to India. By Captain Henry 

 Toynbee 345 



On the Sextactic Points of a Plane Curve. By William Spottiswoode, 

 M.A., F.R S., &c 349 



Products of the Destructive Distillation of the Sulphobenzolates. No. I. 

 By John Stenhouse, LL.D., F.R.S., &c 351 



An Account of the Base-observations made at Kew Observatory with the 

 Pendulums to be used in the Indian Trigonometrical Survey. By 

 Balfour Stewart, F.R.S., and B. Loewy, Esq 357 



An Inquiry into the possibility of restoring the life of Warm-blooded 

 Animals in certain cases where the Respiration, the Circulation, and 

 the ordinary manifestations of Organic Motion are exhausted or have 

 ceased. By Benjamin Ward Richardson, M.A., M.D 358 



