CONTENTS. T 



FEBRUARY 1806, 



Engravings of the following Objefls : 1. A new Secret Lock of Ten Thonfand 

 Combinatiofis ; 2. A Statical Lamp which conftantly I'upplies Oil from a Re- 

 fervoir which cafts no Shadow ; 3. Map of the River Dordcgnc, Ihewing the 

 Courfe of Mafcaret, or violent Influx of Water, which occafionally rufhes 

 into that River. 

 1. On the Caufe oi Fairy Rings. In a Letter from Mr. Florian-Jolly. 93 



JI. Experiments on the Magnetifm of ilender Iron Wires. By John Goiigh, 

 Elq. - - - - - "- 96 



III. Concerning the Differences in the magnetic Needle, on Board the Invef- 

 tigator, arifing from an Alteration in the Dire6tion of the Ship's Head. By 

 Matthew Flinders, Efq. Commander of his Majefty's Ship Inveftigator. 

 From Philof. Tranf. 1805. - - - - 110 



IV. Letter from Mr. Robert Harrup, Aiewing that the Smut in Wheat exifts 

 in the Seed, and is greatly remedied by lime fteeping. - - 113 



V. On the Difcovery of Palladium ; with Obfervations on other Subftances 

 found with Platina. By William Hyde Wolialton, M.D. Sec. R. S. 117 



VI. Report made to the Athene des Arts of Paris, by MM. Rondelet, Beauval- 

 let, and Duchefne ; on the founding the Statue of Joan cf Arc in Bronze, 

 by a Way never before ufed for large Works, by MM. Roulfeau and Genon, 

 under the Direftion of M. Gois, Statuary. - - - 128 



VII. Experiments made at the Galvanic Society of Paris, by M. RifFant, Di- 

 re£lor of the Nitre and Gunpowder Works, tending to prove that Muriatic 

 Acid is not compofed as announced by M. Pachiani. - - 137 



VI [I. Account of an Ancient Geographical Tablet in the Mufeum of Cardinal 

 Porgia, from a Memoir prefented to the Academy of Gottingen, by ProfefTor 

 Heeven. - - - - - - 111 



JX. Analyfis of Birdlime. By M. Bullion Lagrange. [- - 144 



X. Method of purifying Oil. By M. Curaudeau. - - - IjO 



XI. On a peculiar Fluctuation of the River Dordogne, called the Mafcnret, 

 By M. Lagrave Sorbie. - - - - If)? 



XII. Defcription of a fecret Lock of ten thoulhnd Combinations, W. N. 138 



XIII. Letter from Mr. Alex. Crombie, concerning the Caledonian Literary 

 Society at Aberdeen. - - - - - - 1(^3 



XIV. Letter from Mr. James Stodart, in Anfwer to a Qiieftion concerning the 

 Effeft of the Nitrous Oxide, purpoied by Dr. Beddoes - - 165 



XV. Defcription of a Statical Lamp, which maintains a Supply of Oil to the 

 Burner from a Refervoir, placed fo low as to occupy no Interception of 

 Light. By A. F. - - - - - - 16^ 



XVI. Letter from a Correfpondent reftifying fome Particulars of Mifinformation 

 refpcfling the Fifliery of the North of Scotland. - - - 1 68 



XVII. Obfervations and Enquiries concerning the Heat of Air Bellows. By 

 K. H. D. ... . . 170 



XVIII. Account of the Performance of the patent Ship Economy at Sea, in 

 a Voyage to the Weft India Iflands, and of Ibmc Improvement in the Tackle 

 aboard proved of great Utility. By Mr. J. Whitley Bofwell. - 174 



XIX. Experiments on the Torpedo. By MefTrs. Humboldt and Gay Lufl'ac. 

 Extrafted from a Letter of M. Humboldt to M. Berthollet, dated Rome, 

 Sept;, 2, 1805. - - - - - 180 



Scientific News, 184.-— Prizes propofed by the Univerfity andAcademy of Wilna, 

 in June, |,805, ib. — Revived Precipitates from alkaline Solutions of met.-illic 

 .Oxides, 187. — Experiments on falling Bodies, by M. Benzenberg, ib. — 

 (jeogrnphy, ib. — Effeft of Ht-at on Magnetifm. r - 188 



.MARCH 



