0n the PhosPhates. By John Dalton, D.C.L. F.R.S. 8w. ...... page 162 On the Arseniates. By John Dalton, D.C.L. F.R.S..................... 162
On the Constitution of the Resins—Pants 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. ByW. Maedonald, 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, ..... .. 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 difierentparts of the Bodies of Animals. By James Alderson, M.A. M.D. late Fellow of Pembroke College,
Cambridge 165
On the Nerves of the Gravid Uterus. By Robert Lee, M.D. F.R.S,.. 189
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 Abbé 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. 8m ................................................. ........... .. 192
An account of Experiments made with a View of ascertaining the pos- sibility of obtaining aspark before the circuit of the Voltalc Battery is completed. By J. P. Gassiot, 193
l 840.
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 Finmarkeu. 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. Herschel, 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. 197
On Magnetical Observations in Germany, Norway, and Russ . By Major Sabine, R.A. V.P.R.S., in 5. letter to Baron von Humboldt, For. New. R.S., dated Oct. 24th. 1339 197
