42 Exchanges. 



Mexico. — Boletin Mensiial del Observatoria Meteorologico 



Magnetico Central de Mexico, also Anuaria. 

 „ Boletin de Institute 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 Imperial Society of 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. 



New Orleans. — Louisiana State Museum. 



,, Natural History Survey. 



Norman. — The University of Oklahoma. 



Nottingham. — Annual Report and Transactions of the Notting- 

 ham Naturalists' Society. 

 Orono. — The University of Maine. 

 Osnabruck. — Silbzehnter Jahresbericht des Naturwissenschaft- 



lichen Vereines zu Osnabruck. 

 Ottawa. — Annual Report of Geological Survey of Canada. 

 Oxford. — The Ashmolean Natural History Society. 

 Padua. — Atti della Accademia Scientifica Veneto-Trentin 



Istriana. 

 Philadelphia. — Proceedings of the Philadelphia Academy of 



Natural Sciences. 

 „ Proceedings of the American Philosophical Society. 

 Pisa. — Atti della Societa Toscana di Scienze Naturli. 

 Pura, Bengal. — Imperial Department of Agriculture. 

 Rio DE Janiero Archives do Museu Nacional do Rio de 



Janiero. 



