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Vol. 21. . Philosoplilcal Magazine. March 1805. 



CONTENTS of NUMBER LXXXII. 



XV. On the Means most proper to be resorted to for ex- 

 l^tinguishing accidental Fires in Ships. By Alexander Tii,- 

 ' LOCH. Read before the Askesian Society in December 1801 97 



XVI. Memoir on the Natural History of the Coco-nut Tree, 

 and the Areca-nut Tree; the Cultivation of them according 

 to the Methods of the Hindoos ; their Productions, and their I 



jv^- VI Utility in the Arts, and for the Purposes of domestic Economy. 

 ^'^^clBy M. Le Goux de Flaix, an Officer of Engineers, and 

 ^Member of ths Asiatic Society at Calcutta 

 "" XVII. Experiments on preserving Potatoes. Ey J, De 

 I Lance Y, Esq. of the Island of Guernsey 



XVIII. Processes for preparing Lake from Madder. By 

 JSirH.C. Englefield, Bart. 



I XIX. A new Process for separating Gold and Silver from 

 the baser Metals - - - ' 



XX. Twenty-first Communication from Dr. Thornton, 

 'relative to Pneumatic Medicine 



XXI. Communication from Mr. I#CE, Surgeon, relative 

 Jto Pneumatic Medicine - - - 



XXII. Extract of a Memoir on the Temperature of the 

 (M "i^ Water of the Sea, both at the Surface and at different Depths, 

 IwliMalong the Shores and at a Distance from the Coast. By 

 ^^M. F. Pekon, Naturalist on the FVench Expeditron to Newr 



'T|II|jHolland - - - - 



iWlli|l XXIII. An Analysis of the magnetlcal Pyrites ; with Re- 

 . marks on some of the other Sulphurets of Iron. By ChaUIes 

 ik^^wsJHatchett, Esq. F.R.S. - - - 



^^N^ XXIV. Observations on the Change of some of the proxi- 

 -^P^mate Principles of Vegetables inio Bitumen ; with analytical 

 \M'Experiments on a peculiar Substance which is found with the 

 I'f^WBovey Coal. By Charles Hatchett, Esq. F.R.S. 

 (^\% XXV. Experiments and Reflections of Dr. Joachim Car- 

 %^WKADORi DE Prato on the apparent Repulsion between some 



f^Kinds of Fluids observed by Draparnaud 

 hi XXVI. A new Electrical Phaenomenon. Communicated 

 ^by a Correspondent 

 (^\^ XXVII. WtttGHT on measuring the Meridian — Wright, 

 ({^^^MWren, and Wilkins, on an universal Measure — J. Bap- 

 ^^TisTA Porta, on the Reflection of Heat, Cold, and Sound, 

 w^^'from concave Mirrors - - - 



??->» XXVIII. A new Process for rendering Platina malleable. 

 By Alexander Tilloch. Read before the Askesian So- 

 j^c'itty in the Sesiion 1804-5 . . - 



"" XXIX. Description of an improved Mill for grinding 

 j^f^-^* Painters' Colours, By Mr. James Rawlinson, of Derby 

 ^S^ XXX. Improved Mill for grinding Indigo, or other dry 

 ^f?^5 Colours - - - - 



/>%;ij!j XXXI. A new and most accurate Method of Banking the 

 V^i% Balance of a Timekeeper. By Mr. W. Haudy, of Islington iSi''^ 

 ^^■^ XXXil. Proceedings of Learned and Economical Societies 185V' 

 ^<iA\ XXXIII. Intelligence and Miscellaneous Articles :-— Original t 

 ^'|l\" Vaccine Pock Institutioti— Metallic Nature of Ochrui'., &c. 



TAYLOR AND CO. PRINTERS, 38, SHOE LANE, FLBET STKEST. 



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