XIX 



On the annual Variations of some of the principal Fixed Stars. 



J. Pond, Esq. F.R.8 page 2jl 



Oh the Nature of the Function expressive of the Law of Human Mor- 

 tality, and on a new Mode of determining the Value of Life Contin- 

 gencies. By Benjamin Gompertz, Esq. F.R.S 252 



1826. 



servationsof the apparent distances and positions of 458 Double and 

 Triple Stars, made in the Years 1823, 1824, and 1825 ; together with 

 a re-examination of 36 Stars of the same description, the distances 

 and positions of which were communicated in a former Memoir. By 

 James South, Esq. F.R.S page 253 



An Account of the Construction and Adjustment of the New Standards 

 of Weights and Measures of the United Kingdom of Great Britain 

 and Ireland. By Captain 'Henry Kater, F.R.S 254 



Description of an improved Hygrometer. By Mr. Thomas Jones ... 258 



Observations on the Changes which have taken place in some ancient 

 Alloys of Copper. By John Davy, M.D. F.R.S 258 



Additional Proofs of Animal Heat being influenced by the Nerves. By 

 Sir Everard Home, Bart. V.P.R.S 259 



The Croonian Lecture. On the Structure of a muscular Fibre from 

 which is derived its Elongation and Contraction. By Sir Everard 

 Home, Bart. V.P.R.S 259 



An Account of the Heat of July, 1825 ; together with some Remarks 

 upon sensible Cold." By W. Heberden, M.D. F.R.S 260 



On the Transit Instrument of the Cambridge Observatory ; being a 

 Supplement to a former Paper. By Robert Woodhouse, Esq 261 



Account of a Series of Observations, made in the Summer of the Year 

 1825, for the purpose of determining the Difference of Meridians of 

 the Royal Observatories of Greenwich and Paris ; djrawn up by 

 J. F. W. HerscheVEsq. M.sA, .Sec, .R.J3, ... , 261 



Observations on the Poison of the Common Toad. By John Davy, 

 M.D. F.R.S 262 



On the magnetizing .Power of the more refrangible. Solar Rays. By 

 Mrs. M. Somerville 263 



On the mutual Action of Sulphuric Acid and Naphthaline, and on a 

 new Acid produced. By M. Faraday, F.R.S 265 



On the Nervous Circle which connects the voluntary Muscles with the 

 Brain. By Charles Bell, Esq 266 



On the Constitution of the Atmosphere. By John Dalton, Esq. 



F.R.S. &c 267 



On the Coagulation by Heat of the fluid Blood in an aneurismal Tu- 

 mour. By Sir Everard Home, Bart. V.P.R.S 268 



On the mathematical Theory of Suspension Bridges, with Tables for 



facilitating their Construction. By Davies Gilbert, Esq. V.P.R.S. c. 269 

 On Magnetic Influence in the Solar Rays. Hv Samuel Hunter 



Christie, Esq, M.A. F.R.S .". * 270 



b2 



