a 



lA^^ ABSTRACTS 



THE PAPERS 



PRINTED IN THE 



PHILOSOPHICAL TRANSACTIONS 



OF THE 



ROYAL SOCIETY OF LONDON, 



From 1837 to 1843 inclusive. 



VOL. IV. 

 1837 to 1843. 



PRINTED, BY ORDER OF THE PRESIDENT AND COUNCIL, 

 From the Journal Book of the Society. 



LONDON: 



PRINTED BY RICHARD AND JOHN E. TAYLOR, RED LION COURT, FLEET STREET. 

 MDCCCXLIII. 



