iv CONTENTS. 



Page 

 M. Vauquelin's Analysis of the Metal of th°. Statue found at Lillebonne.. 101 



M. Lewenau on Selenium 104 



Mr. Gray on the Pulmonobranchous Mollusca. . . 107 



Mr. Chilton on an improved Rain Gauge 100 



Mr. Brooke on Baryto-Calcite 114 



Mr. Lewthwaiteon theTransmission ofElectricitythroughTubes of Water llC 



Dr. Prout on the Nature of the Acid and Saline Matters in Animals 117 



Mr. Gray on the Arrangement of Papilionidae 1 10 



M. Berzelius on the Decomposition of Silica 1 i* 1 



Ditto on the Mineral Waters of Carlsbad 123 



Col. Beaufoy's Astronomical Observations 141 



Mr. Children's Reply to an erroneous Assertion 141 



Analytical Account of the Philosophical Transactions for 1824, Parti.... 144 



Proceedings of the Astronomical Society 14,0 



Cystic Oxide , 146 



Kote on a Contradiction in Thomson's System of Chemistry respecting 



Phosphuretted H ydrogen Gas 1 47 



Supposed New Metal, Taschium 148 



Chalybeate Preparations of the London Pharmacopoeia I4p 



Zirconia in Black Pepper , 149 



Use of Nitrous Oxide in Eudiometry 140 



Tartarized Antimony , IS 1 



Inflammation of Sulphuretted Hydrogen bv Nitric Acid 131 



Urinary Calculus 152 



Odour of Hydrogen Gas extraneous, Inodorous Hydrogen Gas 153 



Iodine and Phosphorus 1 53 



New Ore of Lead 151 



Mountain Tallow 155 



Rare Minerals found in the Vicinity of Edinburgh 156 



Discorery of Selenium in the Volcanic Rocks of Lipari 15G 



Light and Heat from Terrestrial Sources 150' 



Ex plo»ive Engine I57 



Electricity produced by Congelation of Water 1 57 



New Scientific Books 15; 



New Patents 158 



Mr. Howard's Meteorological Journal 15g 



NUMBER III.— SEPTEMBER. 



Biographical Sketch of the late Rev. John Josias Conybeare, MA. MGS. 101 

 Mr. Ilerschel on certain Motions produced in Fluid Conductors when 



transmitting the Electric Current 1 70 



Dr. Bostock on the Applicability of Sir H. Davy's Discovery to Copper 



Vessels employed for Culinary Purposes 17G 



On the different Articles used for Tanning Leather 180 



Mr. Powell's Remarks on Terrestrial Light and Heat 181 



