secretary's report, 1906. 
221 
University of California, Berkley, California. 
Meriden Scientific Association, Meriden, Conn,, U.S.A. 
New York State Library, Albany, U.S.A. 
Wagner Free Institute of Science, Philadelphia, 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, ]\roscow. 
Comite Geologique de la Russie, St. Petersburg. 
Instituto Geologico de Mexico. 
Socicdad Cientifica "Antonio Alzate," Mexico City. 
Naturhistorischen Hofmuseum, Wien, Austria. 
Societe d'Emulation d'Abbeville, Abbeville. 
L'Academie Royale des Sciences et des Lettres de Danemark, Copen- 
hague. 
Royal University of Norway, Kristiania. 
Kaiserliche Leopold-Carol. Deutsche Akaderaie der Naturforscher, 
Halle-a-Saale. 
Geological Institution, Royal University Library Upsala. 
Imperial University of Tokyo, Japan. 
Museu Nacional de Rio de Janeiro. 
W. Lower Carter. 
