CONTENTS 



OF THE 



THIRTIETPI VOLUME. 



!• On the two Systems of Musical Temperament recom- 

 wended hy Earl Stanhope^ — Mr. Hawkes's System, C!^c. 

 By Mr. John Farey 3 



II. Essay upon Machines in General. By M, Carnot, 

 Member of the French Institute, ^c. c^c, . . . . 8 



III. Additional Memoir upon living and fossil Elephants, 

 ByM.CuviER 15 



IV. Observations upon the Employment of M. Guyton- 

 MoRVEAu's Fumigations for preventing contagious In- 

 fection. By M. A. Hedouin, Physician . . . . 26 



V. Letter from M. Guyton de Morveau upon the 

 Effects of Fumigations in Epidemics of Cattle, and for 

 the Destruction of putrid Miasmata 28 



VI. Experiments upon the liquid Sulphur of Lampadius. 

 By Messrs. VAuauELiN and RoBiauET . . . . 30 



VII. Letter from the Right Honourable Earl Stanhope, 

 relative to Dr. Callcott's Pamphlet on the Stanhope 

 Temperament 34 



VIII. Upon the Decomposition of the Acetate of Barytes ly 

 means of Soda. By iV/. Darcet 36 



IX. Upon the Preparation of pure Barytes. By M. Ro- 

 BiaUET 40 



X. Observations upon the Combination of the fixed Oils 

 tvith the Oxides of Lead and the Alkalies. By M. Fremy, 

 Apothecary at Versailles 42 



XI. Description of the Mountain Barometer, invented by Sir 

 Henry C. Englefield, Bart. F.R.S. and made by Mr, 

 Thomas Jones, of Mount Street, Berkley Square 46 



XII. On E. V.'s Article " On the Means of gaining Power 

 in Mechanics " . . 62 



XIII. Extract (f a Memoir upon the Products which result 

 from the Action of the Metatlic Muriates, the Oxy-mu- 



riatic Acid, and the Acetic Acid, upon Alcohol. By 

 M. Thenard . . . . , , . . 64 



XIV. Upon a peculiar Property in camphorated fVater. 

 By M. Cadet 66 



XV. Letter from Gavin Lowe, Esq., on the Comet 

 of 1807 .. ,. 67 



XVI. A Second Letter from E. V. on the Means of 

 gaining Power in Mechanics 70 



XVII. On the Use of Sulphur as a Fermifuge. By Joseph 

 Hume, Esq., of Long- Acre, London 71 



Voi. 30. No. 120. M(7?/'l80S. a XVIII. Ex- 



