1919.] 
NATURAL SCIENCES OF PHILADELPHIA. 
303 
James Aitken Meigs Fund. 226 
Authors. 93 
United States Department of the Interior. 38 
Pennsylvania State Library. 34 
Editors. 31 
American Entomological Society. 23 
Cornell University Agricultural Experiment Station. 20 
Tennessee State Board of Entomology. 20 
Wistar Institute of Anatomy and Biology. 18 
Imperial Department of Agriculture, British West Indies. 18 
United States Department of Commerce. 14 
Miss Alice J. Smith. 14 
Statens Skogforsokanstalt. 13 
Dr. Henry Skinner. 14 
Utah Agricultural College Experiment Station. 13 
Pan American Scientific Congress. 11 
Samuel G. Gordon. 11 
Colonel George W. Norris. 11 
California State Commission of Horticulture. 10 
North Carolina Geological and Economic Survey. 7 
State Geological Survey, Tennessee. 7 
Secretaria de Agricultura y Fomento, Mexico. 6 
Museum of the American Indian, Heye Foundation. 6 
Trustees of the British Museum... 6 
California Fish and Game Commission. 5 
New York Agricultural Experiment Station. 5 
Publication Committee of the Academy. 5 
Dr. Edward J. Nolan. 5 
Michigan Geological and Biological Survey. 4 
University of Wyoming. o 
John Lawrence. 4 
Queensland Department of Mines. 5 
Roger Williams Park Museum. 4 
Thomas B. Wilson Fund. 4 
Princeton University Department of Geology. 4 
United States Treasury Department. 4 
Royal Scottish Museum, Edinburgh. 3 
Dr. W. L. Abbott. 3 
Cuerpo de Ingenieros de Minas del Peru. 3 
United States War Department. 3 
Ohara Institut fiir landwirthschaftliche Forschungtn. 2 
Geological Survey of Georgia. 2 
Department of Trade and Customs, Australia. 2 
University of Tennessee. 2 
Argentine Government. 2 
San Diego Museum Association.-.. 2 
Mississippi State Geological Survey. 2 
Iowa Geological Survey. 2 
Mrs. C. J. Pennock. 2 
21 
