E 



TABLE OF CONTENTS 



TO THIS FIRST VOLUME. 

 JANUARY 1802. 



NGR AVINGS of the following Objefts : 1 . Dr. Herfchel's Difcoveries of 

 the Conftitution of the Sun j 2. Circular Inftruments by Refle&ion of Mayer, 

 Borda, and Mendoza; and, 3, 4. Two Hydraulic Engines by Mr. Clofe, in 

 which the Syphon is rendered effective in raifing Water above its Level for an 

 unlimited Time. 



I. On the Exhibition of a Series of Primes, and the Refolution of a Compound 

 Number into all its Factors. By Mr. J. Gough. Page 1 



II. On an improved Reflecting Circle. By Jofeph de Mendoza Rios, Efq. 

 F. R. S. - - - - - 4 



III. Obfervations tending to inveftigate the Nature of the Sun, in order to find 

 the Caufes or Symptoms of its variable Emiffion of Light and Heat ; with 

 Remarks on the Ufe that may poffibly be drawn from Sclar Obfervations. 

 By William Herfche), LL. D. F. R. S. - - 13 



IV. Obfervations and Experiments upon Dr. James's Powder, with a Method of 

 preparing, in the humid Way, a fimilar fubftance. By Richard Chenevix, 

 Efq. F.R.S. M.R. LA. - 22 



V. Conftru£lion of an Hydraulic Apparatus, which by Means of the Syphon 

 raifes Water above its Level, and performs its Alternations without Attend- 

 ance. ByMr.Wm. Clofe. - - - 27 



VI. Outline of the Properties and Habitudes of the Metallic Subftance, lately 

 difcovered by Charles Hatchett, Efq. and by him denominated Columbium. 32 



VH. On the Sebacic Acid, or Acid of Fat. By Cit. Thenaid. 34 



VIU. Improvement in the Art of preparing Radical „ Vinegar. By Cit. Y. 



Peres, Jun. - 39 



IX. An Account of a new Eudiometer. By Mr. H. Davy, Director of the Che- 

 mical Laboratory, and Lecturer on Chemiftry to the Royal Inftitution. 41 



X. Analyfis of a newly difcovered Mineral refembling the Hyacinth. By Pro- 

 feffor Tromfdorff. ' - - - - 44 



XI. Philofophical Difquifitions on the Proceffes of common Life— Art of Shav- 

 ing— W. N. - - - " - 47 



XN. AbftracT: of the Enquiries of Cit. BenedicVPrevoft, and fome other Natu- 

 ral Philofophers, relative to the Motions of Odorous Subftances placed upon 

 Water. By Cit. Biot. - - - 51 



XIII. Cafe of a young Gentleman, who recovered his Sight when feven Years 

 of Age, after having been deprived of it by Cataracls, before he was a Year 

 old; with Remarks. By Mr. James Ware, Surgeon. ' - 57 



Scientific News. French National Inftitute. — New Planet. - 69 to 72 



Account of Books of Science. Tranfaclions of the Royal Society. — Gregory's 

 Economy. — Murray's Chemiftry. — Capper on Wind and Monfoons. — J. G.W. 

 on Beet Sugar. — Des Mortieres on Pruflian Blue.— Socquet on Caloric.-* 

 Clanlaire's Atlas of the South of Europe. — Memoirs of the Agricultural So- 

 ciety. - - - - 73 to 79 



Books imported. - - - - 79, 80 



Vol. 1,-1802. a FEBRUARY. 



