PHILOSOPHICAL SOCIETY OP WASHINGTON. 161 



Cincinnati, Ohio ; 



The Library of the University of Cincinnati. 



San Francisco, Cat. : 



The Library of the California Academy of Sciences. 



Oakland, Cal. : 



The Library of the University of California. 



Cordoba, Argentine Republic: 



Library of the National Observatory. 



London, England: 



Editor of " Nature," care of Macmillan & Co. 

 Editor of The London, Edinburgh, and Dublin Philosophical 

 Magazine. 



The Geological Magazine, Bui'lington House. 



Popular Science Eeview. 



Chemical News and Journal of Physical Science. 



Quarterly Journal of Science. 



The Observatory. 



The Academy. 



The Athenaeum. , 



The Journal of the Society of Telegraph Engineers. 



Symon's Monthly Meteorological Magazine. 

 The Librarj' of the British Museum. 

 The Library of the Koyal Society. 

 The Library of the Zoological Society. 

 The Library of the Linnsean Society. 

 The Library of the Eoyal Astronomical Society. 



Oxford, England : 



The Bodleian Library. 



Cambridge, England : 



The Philosophical Society of Cambridge. 



The Editor of the Oxford, Cambridge, and Dublin Messenger of 



Mathematics. 



Calcutta, India . 



Library of the Geological Survey of India, 

 Library of the Meteorological Office for India. 

 Library of the Asiatic Society of Bengal. 



