311 



Meinoires de rAcadeniie IiniJuriale des Sciences de Saint Peters- 

 houTg. (Sciences Matheniatiques, &c.) Tome ii. Liv"* 3, 4. 

 Do. do. (Sciences Politiques, &c.) Tome iv. Ijv"» 4, 5. 

 Do. do. (Sciences Naturellcs.) Tome iii. Liv"* 1, 2, 3, 4. 



Recueil des Actes des Seances Publiques de 1' Academic Impe- 

 riale des Sciences de Saint-Petersbourg', tenues le 29 Dec. 

 1838 et le 29 Dec. 1839. — By the Imperial Academy. 



Voyage dans la Russie Meridionale et la Crimee. Par M. de 

 Demidoff. Liv"'' 2, 3, des planches. 

 •Do. do. (Partie Scientifique) Liv°' 6, 7, 8, 9, 10, en 8vo, et 

 planches en folio — By the Author. 



Comptes Rendus Hebdomadaires des Seances de TAcademie des 

 Sciences de Paris 1840. P' Semestre No. 13, 14, 15, 16, 17, 

 18, 19. — By the Academy. 



Memoire sur la Formation de I'lndig-o dans les Feuilles du Poly- 

 gonum Tinctorium, ou Renouee Tinctoriale. Par Ch. Mor- 

 ren. — By the Author. 



Recherches sur le Mouvement et I'Anatomie du Style du Gold- 

 fussia Anisophylla. Par M. Ch. Morren.— ^y the Author. 



Twentieth Report of the Council of the Leeds Philosophical and 

 Literary Society at the close of the Session 1839-40. — By the 

 Society. 



Essays and Heads of Lectures on Anatomy, Physiology, Patho- 

 logy, and Surgery. By the late Alexander Monro, Secundus, 

 M.D., F.R.S.E., upwards of fifty years Professor of Anatomy 

 and Surgery in the University of Edinburgh. With a Me- 

 moir of his Life by his Son and Successor — By Dr Monro. 



Mr Greenough's Geological Map of England — By the Geological 

 Society. 



A Collection of Specimens of Fossil Organic Remains — By Che- 

 valier Michelotti of Turin. 



An Humble Address to her Majesty on the occasion of the 

 Birth of the Princess-Royal was approved of, and directed 

 to be transmitted for presentation to his Royal Highness 

 the Duke of Sussex. 



Monday, 2lst December. 

 The Right Hon. Lord GREENOCK, V. P. in the Chair. 

 The following Communications were read : — 

 1. On the Polarization of the Chemical Rays of Light, by 



