vm 



On the Phosphates. By John Dalton, D.C.L. F.R.S. &c page 162 



On the Arseniates. By John Dalton, D.C.L. F.R.S 162 



On the Constitution of the Resins.— Parts II. and III. By J. F. W. 

 Johnston, Esq. F.R.S 162 



On the Markings of the Eel-back Dun variety of the Horse, common 

 in Scotland ; in a letter to P. M. Roget, M.D. Sec. R.S. By W. 

 Macdonald, M.D. Fellow of the Royal College of Physicians of 

 Edinburgh, F.R.S. Ed. F.L.S. &c 163 



On the Structure and Functions of the Spleen. By Thomas Gordon 

 Hake, M.D 164 



Additional Experiments on the formation of Alkaline and Earthy 

 Bodies by chemical action when carbonic acid is present. By Robert 

 Rigg, Esq. F.R.S 165 



On the Difference of Colour in different parts of the Bodies of Animals. 

 By James Alderson, M.A. M.D. late Fellow of Pembroke College, 

 Cambridge 



On the Nerves of the Gravid Uterus. By Robert Lee, M.D. F.R.S... 



Observations made at the Cape of Good Hope, in the year 1838, with 

 Bradley's Zenith Sector, for the verification of the amplitude of the 

 Abbe de la Caille's Arc of the Meridian ; by order of the Lords 

 Commissioners of the Admiralty. By Thomas Maclear, Esq. M.A. 

 F.R.S. &c 



An account of Experiments made with a view of ascertaining the pos- 

 sibility of obtaining a spark before the circuit of the Voltaic Battery 



is completed. By J. P. Gassiot, Esq 193 



1840. 



On the construction and use of Single Achromatic Eye-Pieces, and 

 their superiority to the double eye-piece of Huyghens. By the Rev. 

 J. B. Reade, M.A. F.R.S 195 



Meteorological Observations made between October, 1837, and April, 

 1839, at Alten in Finmarken. By Mr. S. H. Thomas, chief mining 

 agent at the Alten Copper Works. Presented to the Royal Society 

 by John R. Crowe, Esq. Her Britannic Majesty's Consul at Fin- 

 marken 195 



On Nobili's Plate of Colours ; in a letter from J. P. Gassiot, Esq., 

 addressed to J. W. Lubbock, Esq. V.P. and Treasurer R.S 195 



Geographical position of the principal points of the Triangulations of 

 the Californias and of the Mexican Coasts of the Pacific, with the 

 heights of the principal points of that part of the Cordilleras. By 

 the Comte Vincent Piccolomini ; in a letter addressed to Sir John 

 F. W. Hersche], Bart. V.P.R.S 196 



Report on the co-operation of the Russian and German observers, in 



a system of simultaneous Magnetical Observations. By the Rev. 

 H. Lloyd, F.R.S., in a letter addressed to Sir John F. W. Herschel, 



Bart. V.P.R.S 197 



On Magnetical Observations in Germany, Norway, and Russia. By 

 Major Sabine, R.A. V.P.R.S., in a letter to Baron von Humboldt, 

 For. Mem. R.S., dated Oct. 24th, 1839 197 



