|4,£ ACCOUNT OF BOOKS. 



New Books; Traite d'Optique: A Treatife on Optics, anew Edition revifed 

 and corrected, with Additions, particularly on the Produc- 

 tion of the Images in Optical Inflruments, on the Achro- 

 matic Telefcope, and on the Iris, by many Pupils of the 

 Polytechnic School, with all the Plates of the old Edition, 

 and the Addition of many new Ones, by Lacaille. 1 Vol. 

 8vo. Price 3 Francs. 



Nouvelks Experiences Galvaniques: New Galvanic Experi- 

 ments by Nyften, Phyfician, 8vo. Price fewed, 2 Francs. 

 50 Cents. Levraults, Paris. 



