XV 



upon in the eighteenth year of his age ; with Physiological Ob- 

 servations and Experiments. By J. C. August Franz, M.D. 

 M.R.C.S page 303 



Catalogue of Geological Specimens procured from Kerguelen's Land 

 during the months of May, June, and July 1840 305 



Catalogue of Birds collected on board Her Majesty's Ship Terror, be- 

 tween the Cape of Good Hope and Van Diemen's Land 305 



Description of Plants from Kerguelen's Land, collected in May, June, 

 and July, 1840 305 



On the Fossil Remains of Turtles discovered in the Chalk Formation 

 of the South-East of England. By Gideon Algernon Mantell, Esq. 

 LL.D. F.R.S 305 



On the Compensations of Polarized Light, v^ith the description of a 

 Polarimeter for Measuring Degrees of Polarization. By Sir David 

 Brewster, K.H. D.C.L. F.R.S. and V.P.R.S. Ed 306 



Researches tending to prove the Non- vascularity of certain Animal 

 Tissues, and to demonstrate the peculiar uniform mode of their Or- 

 ganization and Nutrition. By Joseph Toynbee, Esq 308 



Magnetic-term Observations made at Milan, on the 21st and 22nd of 

 April, 1841 311 



Register of Tidal Observations made at Prince of Wales's Island, in 

 July, August and September, 1840 311 



Register of Tidal Observations made at Singapore in July, August and 

 September, 1840 311 



On the Anatomy and Physiology of certain structures in the Orbit, 

 not previously described. By J. M. Ferrall, Esq. M.R.LA 311 



An account of some recent improvements in Photography. By H. F. 

 Talbot, Esq. F.R.S 312 



Experiments on the electric conditions of the Rocks and Metalliferous 

 Veins (Lodes) of Longclose and Rosewall Hill Mines in Cornwall. 

 By William Jory Henwood, Esq. F.R.S. &c. Secretary of the Royal 

 Geological Society of Cornwall 317 



Researches in the Theory of Machines. By the Rev. H. Moseley, 

 M.A. F.R.S. Professor of Natural Philosophy and Astronomy in 

 King's College, London 318 



On the Nervous Ganglia of the Uterus. By Robert Lee, M.D. F.R.S. 321 



On the Corpuscles of the Blood.— Part HL By Martin Barry, M.D, 

 F.R.SS. L. and E 323 



A new Theory of Physics, with its application to important phseno- 

 mena hitherto considered as ultimate facts. By Thomas Exley, 

 Esq. A.M 325 



On the Organs of Reproduction, and on the Development of the My- 

 riapoda. By George Newport, Esq 326 



Variations de la declinaison et intensite magnetique horizontale ob- 

 servees a Milan le 28 et 29 Mai, la 23 et 24 Juin, le 21 et 22 Juillet, 

 le 27 et 28 Aout, et le 22 et 23 Septembre 1841. Par Sigr. Carlini, 

 For. Memb. R.S 329 



Variations de la declinaison magnetique et de I'intensite magn6tique 



