ly CONTENTS. 



Page 

 Summary oi the Magnetlcal and Meteorological Observations for Three 



Years and Nine Months. By Col. Beaufoy, FRS 94 



On a Method of applying Maclaurin's Theorem. By Mr. James Adams. 98 



On the Solution and Crystallization of Lime. By R. Phillips, FRSE. &c. 107 



On the Bicarbonate of Ammonia. By the Same 110 



On Rain-Guages. By Mr. Davenport Ill 



On the Machine for measuring a Ship's Way by the Log Line 113 



On the Action of Crystallized Bodies on Homogeneous Light. By J. F. W. 



Herschel, Esq. FRSL. and E 115 



Meteorological Journal kept at New Malton. By Mr. Stockton 133 



On Compressibility of Water. By P. M . Roget, iMD. FRS. &c 135 



New Substance found in Ironstone. By the Rev. J. J. Conybeare ...... 136 



Electro-magnetic Experiments ISf 



Analytical Account of Researches on the Magnetism of the Earth 138 



Analytical and Critical Account of An Essay on Chemical Analysis. .. .? 140 



Proceedings of the Royal Society, Jan. 1 8, and 25 144 



■ Geological Society, Jan. 5 1 49 



Crystallization of Red Oxide of Copper 150 



Description of Two New Substances found, by Dr. Macculloch, in the 



Isles of Rum and Mull 151 



Production of Artificial Cold I53 



Mercurial Atmosphere 1 53 



Sulphuret of Chrome 1 53 



New Scientific Books 154 



New Patents 155 



Col. Beaufoy's Astronomical, Magnetical, and Meteorological Observa- 

 tions for December 156 



Mr. Howard's Meteorological Journal for December-. 159 



NUMBER III.— MARCH. 



On the Action of Crystallized Bodies on Homogeneous Light. By 



J. F. W. Herschel, Esq. FRS. (continued). (With a Plate.) J 6l 



Observations on Van Marum's Memoir on Franklin's Theory of Electri- 

 city. (With a Plate.) 181 



Remarks on Mr. Phillips's Andysis of the Edinburgh Pharmacopoeia. By 



Dr. Hope 187 



Chemical Examination of the Common Hop. By Dr. Ives, of New York I94 

 On various Mixtures ofOxymuriate of Potass for discharging Ordnance. . 202 



Col. Beaufoy's Magnetical and Meteorological Observations for Jan 203 



On the Going of a Clock with a Wooden Pendulum. By Col. Beaufoy. 203 

 Diurnal Variation of the Magnetic Needle. Communicated by Col. 



Beaufoy 205 



Remarks regarding the Experiments upon Flame. By Mr. Deuchar 206 



On a Machine for measuring a Ship's Way by the Log Line. By Mr. 

 Newman 208 



