CONTENTS. 



XLYIT. Principle of the Science of Tuning Instruments 

 withjixed Tones. By Charles Earl Stanhope 29I 



XLVIII. Observations upon Alitant Wine, and particularly 

 the AH cant Raisin Wine. By M. P/ssis, MAD. 313 



XLTX. Chemical Observations upon Spathic Iron, By 

 M. Collet Descostils, Engineer of Mines .. 317 



L. Description of an Invention for elevating and de- 

 pressing Water, applicable to the Use of Canal Locks, 

 and for preventing the usual Waste of Water therein. 

 By Mr. Robert Salmon, of Woburn . . . . 324 



LT. Memoir upon the Decomposition of Water, and of 

 the Bodies which it holds in Solution, by means of Gal- 

 vanic Electricity. By CI. T. de Grotthius. 330 



LI I. On the Imitation of Marble and Plaster Figures by a 

 new Composition made of old Paper reduced to Paste 339 



LIN. Report made by M. Guyton upon a sculptured Head 

 in Flint, with a Covering of Chalcedony. Read in the 

 French Institute on the 31st of March 1806. . . 340 



LIV. Report of Surgical Patients admitted into the Fins- 

 bury Dispensary, from the 1st of April to the 3\st of 

 August, 180b'. By John Taunton, Esq. Surgeon to the 

 City and Finsbury Dispensaries, and Lecturer on Ana- 

 tomy, Physiology, and Surgery 346 



LV. Extract of a Memoir upon Hair. Read at the French. 

 National Institute, by M. Vauq.uelin' . . . . 351 



LVI. Thirty -fist Communication from Dr. Thornton, 

 relative to Pneumatic Medicine 357 



LVII. Letter from Marc Taerg, Esq. of Beeston, near 

 Shrewsbury, to Mr. Tilloch, on the Preparation of Com- 

 posts for Land, and on the Composition of Potash 353 



LVIII. Memoir upon Ultra-marine. By Mes srs. Desormes 

 and Clement. Read in the French Institute January 27, 

 1806 359 



T.IX. Galvanic Experiments by Mr. D. Gardner, Lecturer 

 on Chemistry at the City Dispensary 364 



LX. Letter from Dr. Delaville, to M. Vauquelin, 

 upon the Oxidation of Metals, and particularly of 

 Lead 365 



LXI. Extract of a Letter to Professor Pictet, from a 

 C01 respondent at Munich, upon some Galvunico-magnetic 

 Experiments recently made by M. Kittkr . . 368 



LXI1. Proceedings of Learned Societies . . .. 369 



LXIII. Intelligence and Miscellaneous Articles .. 371 



THE 



