PREFACE. 



JL HE Authors of Original Papers and Communications in the 

 present Volume are, R, B. ; Joseph Reade, M. D. ; Dytiseus; 

 Hemerobius; Mr. Robert Banks; John Gough, Esq.; P.; A. B. 

 C. D. ; Lieutenant Henry Kater ; Mr. J. Aston ; Professor Vince ; 

 Mr. Daniel Dering Mathew; Dr. Gierke; Rev. J. Blanchard ; 

 Mr. T. Clifton; Mr. J. Wright; Mr. G. H. Willers; John Dick- 

 enson, Esq.; Mr. John Martin ; Mr. Richard Drew; Mr. John 

 Tatum; a Correspondent. 



Of Foreign Works, M. L. F. Lemaitre; M. Tonnelier ; M. 

 Theodore de Saussure; Christian Frederic Bucholz ; Mr. le Li- 

 evre; M. Margueron ; Professor Lampadius; M. Vauquelin ; M. 

 G. A. Delnc; M. Perperes ; M. Planche ; M. Depuytren ; M. 

 Thenard; Mr. RolofF; Mr. Giulio ; Mr. Bergman ; Professor Wur- 

 zer ; M. Collet- Descotils ; Mr. Klaproth. 



And of British Memoirs abridged or extracted, Sir Joseph 

 Banks, Bart. K. B. P. R.S.; Everard Home, Esq. F. R. S. ; Mr. 

 John Middleton ; Mr. Joseph Came; Dr. Alexander Marcet; Ma- 

 jor William Lambton ; Arthur Biggs, F. H.S.; Richard Antony 

 Salisbury, Esq, F.R.S.; C. H. Parry, M. D. ; Mr. G. Irwin; 

 Rev. Thomas Falconer ; Mr. William Hardy ; Mr. James Dickson, 

 F. L. S. ; V. P. H. S. ; H. L Colebrook, Esq. ; Mr. F. C. Daniel ; 

 Lieutenant John Bell ; Humphry Davy, Esq. Sec. R. S. M. R. L A. ; 

 James Smithson, Esq. F. R. S. ; Mr. William Garrard; Nevil Mas- 

 kelyne, D. D. F. R. S.; Mrs. Hannah D'Oyley; Right Hon. Earl 

 of Fife; David Day, Esq. 



The Engravings consist of 1. Mr. Middleton's Mode of Print- 

 ing ; 2. Relistian Tin Mine; 3. Singular Strata in a calcareous 

 Mountain near Cressy ; 4, 5. Ditto in the Department of Doubs ; 

 6. Draining of the Pond of Citis ; 7. Yenite, a new Mineral Sub- 

 stance ; 8. Mr. Hardy's Compensation Balance; 9. Compensation 

 Pendulum, by Mr. Henry Kater; 10. An irregular Production of 

 the Cucumber; 1 1 . Mr. Mathew's Scapement ; 12. Planche's Ap- 

 paratus for Succinic Acid; 13. Mr. Wright's artificial HoriEon ; 

 14. Mr. Daniel's Life Preserver from Shipwreck; 15. Lieutenant 

 Bell's Method of saving Persons frxim stranded Ships ; 1 6. Com- 

 pound Sulphuret; 17. New Properties of Tangents; 18. Radiation 

 and Reflection of Cold; 19. Mr. Richard Drew*s Balance Level; 

 20. Mrs. D'Oy ley's Method of rearing Poultry. 



TABLE 



