PREFACE 



T, 





HE conclusion of the first Volume of the new Series of 

 this Journal, demands that I should return my sincerest ac- 

 knowledgments to those excellent Correspondents who have 

 assisted me in improving it, and to the Public at large, who 

 have shewn by the increased demand, that they approve the 

 alterations which have been made. 



Among the advantages I will here mention only two ; the 

 first by no means inconsiderable, is the very neat and cor- 

 rect typographical execution, which would be honorable to 

 the Printer of a complete copy of a work at leisure, and is 

 singularly valuable in a periodical work ; — the other, namely 

 the side notes, requires so much diligence and expence, 

 that it is likely they will long continue to be peculiar to this 

 Journal. These circumstances, added to the unvaried fide- 

 lity of conduct in quotation and regard to the rights of 

 others ; from which the Editor never has nor will depart, 

 have naturally led men of eminence to chuse this Journal as 

 the repository for their communications. 



It is with a very high degree of satisfaction that I can 

 state, that half the materials contained in the present Volume 

 are original, and avowed by their very respectable Authors ; 

 that one third part conlills of translations, or abstracts of 

 excellent works never before publifhed in English, and 

 that the remaining sixth part are select Memoirs, either 

 abridged or extracted from the Transactions of the Royal 

 Society, and other recent and authentic sources of dis- 

 covery. 



The Authors of original Papers are Doctors Thomson, 

 Beddoes, Higgins, and Prieftley ; the Rev. W.Pearson; 

 Messrs. Gough, Close, Davy, Murray, R. L. Edgeworth, 

 Stodart, Zach, Accum, Ez. Walker, Goodwyn, W. Walker, 

 and W.N. — Of foreign works, Thenard, Peres, Tromsdorf, 

 Prevost, Dolomieu, Proust, Loysel, Hauy, Volta, Van 

 Marum, Le Blanc, Carradori, Darcet, Parmentier, Vau- 

 quelin, Darracq. — And of English Memoirs abridged or 

 extracted, Mendoza, Hcrschel, Chenevix, Davy, Ware, 



Cooper, 



