ON 



THE CONNEXION 



THE PHYSICAL SCIENCES, 



BY MARY SOMERVILLE, 



l\ 



AUTHORESS OF " PHYSICAL GEOGRAPHY. 



" No natural phenomenon can be adequately studied in itself alone but, to 

 be understood, it must be considered as it stands connected with all Nature." 



BACON. 



'tnnvsEsiTY 



LONDON: 

 JOHN MURRAY, ALBEMARLE STREET. 



1849. 



