xu 



CONTENTS. 



VIII. On the chemical Adion of different Metals on each other, at the com- 

 mon Temperature of the Atmofphere. By Cit. Fabroni - p. 308 



Mr. Fabroni is difpofed, from feme experiments, to conclude, that the galvanic ftimuii from the ap- 

 plication of metals to the tongue, &c. are merely the confequence of chemical adions. 



IX. On the Harp of Eol US. By Matthew Young, B.D. - P- 310 

 Experiments on a fingle firing of the Eolian harp. Enumeration of its tones. Theory. 



X. Analyfis of the Chromate of Iron, of the Baftide de la Carrade. By Cit. 

 Taflaert - - - - - P- 314 



XI. Report made to the National Inftitute of Sciences and Arts (at Paris), on 

 the 29th Prairial, in the feventh Year (June 17, 1799), in the Name of the 

 Clafs of Phyfical and Mathematical Sciences, on the Meafure of the Meridian 

 of France, and the Refults which have been deduced to determine the new- 

 Metrical Syftem - - - - - -p. 316 



XII. Detached Fadts, or Notices on chemical Subjeds — Nitric Acid — Oxide of 

 Azote — Indigo — Nitrate of Potafh — Refidue of Ether — Inflammation of Oils 

 by Nitric Acid — Ammoniac — Putrid Water at Sea. By Cit. Prouft, Profef- 

 for of Chemiftry at Madrid - - _ P- 325 



Scientific News. Account of Books, &c. - - P- 329 



NOVEMBER 1799. 



Engravings of the following Objefts : i. A new filent Efcapement for Clocks. By 

 Mr. Goodrich 2. The Furnace of Profeflbr Pott. 3. Apparatus for con- 

 verting Iron into Steel, by means of the Diamond ; and, 4. A Lamp for 

 burning Tallow, by Mr, William Clofe. 



I. Chemical Experiments and Obfervations on the Produftion of Sugar, and an 

 ufeful Syrup from indigenous Plants. By Sigifmund Frederic Hermbftadt 



P- 333 

 General obfervations. Fa£ts and obfervations concerning the quantities of fugar obtained from the 

 fugar-cane, the maple, Indian corn, Siberian bear's-breech, or katfch, the juice of grapes, and. 

 the birch. 



II. Obfervations on the various Kinds of Manure. By John Middleton, Efq. 



p. 340, 



Experiments on- a confiderable fcale with peat-a(hes, coal-a(hes, wood-a(hes, malt-duft, foot, foap- 

 makers' wade, the fweepings of London ftreets, the foil of privies, and farm-yard dung, as 

 wanures. 



ML 



