xiv 



Magnetic-term Observations taken on board H. M.S. Erebus and Terror, 

 at Hobart Town, on the 29th and 30th August, and the 23rd and 

 24th September 1840. By, and under the direction of James Clark 

 Ross, Capt. R.N. F.R.S. and Commander of the Antarctic Ex- 

 pedition page 298 



Magnetic-term Observations made at the fixed Magnetic Observatory, 

 Van Diemen's Land, on the 28th, 29th and 30th August, and the 

 23rd and 24th September, 1840. By James Clark Ross, Captain 

 R.N. F.R.S. Commander of the Antarctic Expedition 298 



Hourly Magnetic Observations for August and September, 1840, taken 

 at the Ship's Magnetic Observatory, Van Diemen's Land, under the 

 direction of James Clark Ross, Captain R.N. F.R.S. Commander 

 of the Antarctic Expedition 298 



Variation de la dechnaison, intensite horizonal et inclinaison magne- 

 tique, observes a Milan, pendant vingt-quatre heures de suite, le 24 

 et 25 Fevrier et Mars, 1841, par Signor Carlini, For. Memb. R.S. 298 



Remarks on the Birds of Kerguelen's Land. By R. M<^Cormick, Esq. 



Surgeon R.N. of H. M.S. Erebus 298 



Geological Remarks on Kerguelen's Land. By R. M^Cormick, Esq. 

 Surgeon R.N. of H.M.S. Erebus 299 



On the proportion of the prevailing Winds, the mean Temperature, 

 and depth of Rain in the climate of London, computed through a 

 cycle of eighteen years, or periods of the Moon's Declination. By 

 Luke Howard, Esq. F.R.S 300 



A new Method of solving Numerical Equations. By Mr. Thomas 

 Weddle, of Stamfordham 300 



Additional Note on the Contraction of Voluntary Muscles in the living 

 body. By WilUam Bowman, Esq, F.R.S. Demonstrator of Ana- 

 tomy in King's College, London, and Assistant Surgeon to King's 

 College Hospital 301 



Investigation of a New and Simple Series, by which the Ratio of the 

 Diameter of a Circle to its Circumference may easily be computed to 

 any required degree of accuracy. By William Rutherford, Esq. of 

 the Royal Military Academy, Woolwich 302 



On the Phsenomena of thin plates of Solid and Fluid Substances ex- 

 posed to Polarised Light. By Sir David Brewster, K.H. D.C.L. 

 F.R.S. and V.P.R.S. Ed 302 



Meteorological Observations for August, September, and October, 1840, 

 taken on board H.M.S. Erebus and Terror, by and under the direc- 

 tion of Capt. James Clark Ross, R.N. Commander of the Ant- 

 arctic Expedition 303 



Hourly Meteorological Observations made at Plymouth, in latitude 

 52° 36' 12", longitude in time 6™ 55' east, on the 22nd of March, 

 1841. By Arthur Utting, Esq 303 



Barometrical Observations taken at Naples at 9 a.m. on each day du- 

 ring the months of January and February, 1841. By Sir Woodbine 

 Parish, K.C.H. F.R.S 303 



Memoir of the case of a gentleman born blind, and successfully operated 



