32 Exchanges. 



London. — Quarterly Jourrjal of the Geological Society of London. 

 ,, Journal of the Royal Microscopical Society. 



„ Transactions of the Zoological Society of London. 



„ Memoirs of the Astronomical Society. 



„ Guide Bcoks, British Museum (Natural History). 



„ The Patent Office Library. 



Madison. — Bulletin and Maps of the Geological nnd Natural 



History Survey of Wisconsin. 

 Madras. — Bulletin of the Madras Government Museum. 

 Manchester. — Journal of the Manchester Geographical Society. 

 Melbourne. — Proceedings of the Royal Society of Victoria. 

 Mexico. — Boletin Mensual del Observatoria Meteorologico 

 Magnetico Central de Mexico, also Anuaria. 

 „ Boletin de Instituto Geologico de Mexico. 

 Milwaukee. — Bulletin of the Wisconsin Natural History Society. 

 Minneapolis. — Bulletin of the Minnesota Academy of Natural 



Sciences. 

 Missoula. — Bulletin of the University of Montana. 

 Montevideo. — Anales del Museo Nacional de Montevideo. 

 Montreal. — Reports and Maps, Geological and Natural History 



Survey of Canada. 

 Moscow. — Bulletin of the Im[)erial Society oi Naturalists of 



Moscow. 

 New Haven, Conn.— Yale University Library. 

 New York. — Bulletin of the American Geographical Society. 

 ,, Annals of the New York Academy of Sciences. 



„ Columbia University Library. 



Ne;w Orleans. — Louisiana State Museum. 



„ Natural History Survey. 



Norman. — The University cf Oklahoma. 



Nottingham. — Annual Report and Transactions of the Notting- 

 ham Naturalists' Society. 

 Orono. — The University of Maine. 



Osnabruck. — Silbzehnter Jahresbericht des Naturwissenschaft- 

 Ijchen Vereines zu Osnabruck. 



