GEOLOGICAL Society, 
Burlington House, London, W. 
March, 1881. 
Tue Council of the Geological Society of London beg to 
present to your Library a copy of the lately issued ‘ Catalogue 
of the Library of the Geological Society,’ containing the titles 
of all works received up to the end of June 1880. In re- 
questing your acceptance of this volume, the Council desire to 
call attention to the existence of numerous deficiencies in the 
Society’s series of various works, especially of the publications 
of Learned Societies and Public Institutions. “The Council 
will be greatly obliged to the authorities of any of these 
Societies or Institutions who will kindly aid in filling up the 
deficiencies in question. 
| Mis. com Fon 
UBRAny 
| 973 195 
HARVAPD 
ONIVERSHry 



