ADVERTISEMENT. 



T 



HE Authors of Original Papers in the present Volume, 

 are C.Wilkinson, Esq.; Peregrinus Proteusj A Constant 

 Reader; E. P.; Mr. W Jones, F. Am. P. S. ; Alexander 

 Henderson, M.D.j Mr. J. Haley, Jun. ; R. B ; Mn&e- 

 kiel Walker; G. A.; I. R. I. ; A Correspondent; Mr. 

 Cuthbertson; Mr. J Bramah ; Messrs. Harman and Dearn ; 

 Mr. Frederick Accum; A Carlisle, Esq.; R. T. ; Mr. J. 

 Dalton; H. G. ; Mr. J. C. Hornblovver ; Mr. John Gough ; 

 M. le Comte de Bournon ; Mr. A. Woolf ; Right Hon. Sir 

 Joseph Banks, Bart. P. R. S. ; Thomas Thomson, M. D. 5 

 Wm. Hyde Woollaston, M. D. F. R. S. ; Mr* Wm. Henrj 5 

 T. S. T. 



Of Foreign Works, H. Beaupoil; Cit. Berthollet; Four^ 

 croy f Vauqueiin ; Collet Descotils; Brugnatelli; Professor 

 Lichtenberg; Ritter; Hauy ; J. Drapernaud ; Klaproth; 

 Van Marum ; J, C. Bartholdi ; Jerome De Lalande ; J.,L. 

 Guy Lussac ; Dr. P. A. Nemnich* 



And of English Alemoirs, abridged or extracted; R. 

 Ramsden Bradley, Esq. ; Mr. Robert Green ; Rev. Edmund 

 Cartwright; Dr. John Winterbottom ; R. B. ; Benjamin 

 Smith Barton, M. D. ; Mr. Edward Massey ; Mr. David 

 Charles; Smithson Tennant, Esq. F. R. S. 



Of the Engravings the Subjects are^ 1. Machine of con- 

 iiderable Power for clearing Roads of Mud, by Dr. Winter- 

 terbottom. 2. Mr. Robert Green's Hand Drill for Peas. 3. 

 The Rev. E. Cartwright's Three-Furrow Plough. 4. Dia- 

 gram for inveftigating the Figure of the Earth. 5. New Gal- 

 vanic 



