secretary's report, 1906. 
Leeds Philosophical and Literary Society. 
Leeds Geological Association. 
Liverpool Geological Society. 
Liverpool Geological Association. 
Hampshire Field Club. 
Hull Geological Society. 
Hull Scientific and Field Naturalists' Club. 
Manchester Geological Society. 
Manchester Geographical Society. 
Manchester Literar}'^ and Philosophical Society. 
North of England Institute of Mining and Mechanical Engineers, 
Newcastle-on-Tyne. 
Nottingham Naturalists' Society. 
Rochdale Literary and Scientific Society. 
Southport Society of Natural Science. 
Warwickshire Natural History and Topographical Society. 
University Library, Cambridge. 
University Library, Glasgow. 
Bodleian Library, Oxford. 
RadclifFe Library, Oxford. 
Yorkshire Naturalists' Union. 
Yorkshire Philosophical Society, York. 
American Philosophical Society, Philadelphia, U.S.A. 
American Museum of Natural History, New York, U.S.A. 
Academy of Natural Sciences, Philadelphia, U.S.A. 
Academy of Sciences, St. Louis, Mo., U.S.A. 
Brooklyn Institute of Arts and Sciences, N.Y. 
Boston Society of Natural History, Boston, U.S.A. 
Rochester Academy of Sciences, Rochester, N.Y. 
Kansas University, Lawrence, Kansas. 
Wisconsin Geological and Natural History Survey, Madison, Wis., 
U.S.A. 
Geological Survey of Minnesota, Minneapolis, Minn., U.S.A. 
California State Mining Bureau, San Francisco. 
Chicago Academy of Sciences. 
Maryland Geological Survey, Johns Hopkins University, Baltimore,. 
U.S.A. 
Museum of Comparative Zoology at Harvard College, Cambridge, Mass. 
New York Academy of Sciences, New York. 
United States Geological Surv^ey, Washington, D.C. 
United States National Museum, W^ashington, D.C. 
Elisha Mitchell Scientific Society, University of N. Carolina, Chapel, 
Hill, U.S.A. 
