CONTENTS. iii 



XXXVI. Conjectures rej peeling the Origin of the America* 

 Nations , Concluded - - - 237 



XXXVII. An Effay on Bleaching ; with the Defcription of 

 a ?icw Mi/hod of Bleaching by Steam, according to the 

 Proce/s oJ'C. Ciuptal; and on its Application to the Arts. 

 By R. O'Reilly, of the Academy of Bologna, Member of 

 the Lyceum, of 'the Arts, &c. Continued - 247 



XXXVI II. Some Account of the Life of Plaqidus 

 Fixlmillner, the Afronomer - - 264 



XXXIX. A brief Account of the Origin and Progrefs of 

 Letter-prefs-plate or Stereotype Printifig - 267 



XL. Communication from Projejjor M. A. PlCTET, oj 

 Geneva, (nenv in London,) on Flexible Stones, addreffed 

 to Mr, Tillocb - - - - 277 



XLI. On the Velocity of Water Wheels. By Mr. Robertson 

 BuciiANAJSj Engineer. Communicated in a Letter fa 

 the Editor - - - 278 



XLI I. Account of a new Injhument for the Extraclion of 

 Teeth, by the Inventor, Mr. Reece, Member of the 

 Royal College of Surgeons, London - 281 



XLIII. Account of New Publications * 282 



XLIV. Proceedings of Learned Societies - 284 



XLV. Intelligence and Mifcellaneous Articles - 28^ 



XLVt. Defcription of the Salt Mines of Wielitfka, in Poland. 

 By J. Peschier, M. £>. - - 289 



XLVII. Account of Lord Dundonald's Difcovery of a 

 Procefs for extracting from Lichens a Gum applicable to 

 niofl Purpofes in which Gum Senegal has been hitherto em- 

 ployed - - - - 295 



XLVIII. An Effay on Bleaching*, with the Defcription of a 

 new Method of Bleaching by Steam, according to the Pro- 

 cefs ofC Chaptal; and on its Applicatiori to the Arts. 

 By R. O'Reilly, of the Academy of Bologna, Member 

 of the Lyceum of the Arts, &c. Concluded - 299 



XLIX. Obfervations on the Oil extracted from the Female 

 Cornel or Dog-berry Tree, the Comus fanguinea of Lin- 

 naus, Clafs 4,-th; Tetrandria Monogynia. By C. Mar- 

 gueron, of the Hofpital for Military injlruclion at 

 Strajburgh - - - 318 



L. Researches refpecling the Laws of Affinity. By C. Ber- 

 THOLLETj Member of the French National Infliiute. Con- 

 tinued - - - - 321 



^il. Experiments on the Afhes of fome Kinds oj Wood by 

 C. Pissis, Phyfkian at Brionde, in the Department of ( 

 \a Haute Loire - 



a % LII, 



