secretary's report. 
Boston Society of Natural History, Boston, U.S.A. 
Kansas University, Lawrence, Kansas. 
Wisconsin Geological and Natural History Survey, Madison, Wis., 
U.S.A. 
Geological Survey of Minnesota, Minneapolis, Minn., U.S.A. 
Chicago Academy of Sciences. 
Museum of Comparative Zoologj' at Harvard College, Cambridge, Mass. 
New York Academy of Sciences, New York. 
United States Geological Survey, Washington, D.C. 
Elisha Mitchell Scientific Society, University of N. Carolina, Chapel 
Hill, U.S.A. 
New York State Library, Albany, U.S.A. 
Wisconsin Academy of Sciences, Arts, and Letters. 
Smithsonian Institution, Washington, D.C. 
L' Academic Royale Suedoise des Sciences, Stockholm. 
Societe Imperiale Mineralogique de St. Petersburg. 
Societe Imperiale des Naturalistes, Moscow, 
Comite Geologique de la Russie, St. Petersburg. 
Instituto Geologico de Mexico. 
Sociedad Cicntifica "Antonio Alzate,"' Mexico City. 
Australian Museum, Sydney. 
Australian Association for the Advancement of Science, Sydney. 
NatiH'al History Societj^ of New Brunswick. 
L" Academic Roj'ale des Sciences et des Lettres de Banemark, Copen- 
hague. 
Kaiserliche Leopold -Carol. Ueutsclie Akademie der Naturforscher, 
Halle-a-Saale. 
Geological Institution, Ro3'al Univeisity I^ibrary, Upsala. 
Imperial University of Tokj^o, Japan. 
