CATTELL, J. MCKEEN, Ph.D.

Professor of Experimental Psychology.
Columbia College, New York, N.Y.

CHAPIN, H. E.

Professor of Biology, University of Ohio.

Athens, O.

CHAPMAN, FRANK M.

Psychology.

Biology.

Mammalogy and Ornithology.

Assistant Curator, American Museum of Natural History. 77th street and 8th avenue, New York, N. Y.

CHITTENDEN, R. H., Ph.D.

Physiology.

Professor of Physiological Chemistry, Yale University.
83 Trumbull street, New Haven, Conn.

*CLARKE, SAMUEL F., Ph.B., Ph.D.

Professor of Natural History, Williams College.

Zoology.

Paleontologist, U.S. Geological Survey, Honorary Curator

Department of Mollusks, U.S. National Museum.

Smithsonian Institution, Washington, D.C.

Professor of Biology, Central High School, Philadelphia.

108 South Thirty-sixth street, Philadelphia, Penn.

Parkman Professor of Anatomy, Harvard Medical School. 235 Beacon street, Boston, Mass.

*DWIGHT, WILLIAM B., A.B., A.M., Ph.B. Geology and Inver

tebrate Palæontology.

Professor of Natural History and Curator of the Museum,

Professor of Cryptogamic Botany, Harvard University.

Harvard University, Cambridge, Mass.

*FERNALD, C. H., A.M., Ph.D.

Microlepidoptera.

Professor of Zoology, Massachusetts Agricultural College.

Amherst, Mass.

FERNALD, HENRY T., M.S., Ph.D.

Professor of Zoology, Pennsylvania State College.

State College, Centre Co., Penn.

FERRIS, HARRY B, M.D.

Professor of Anatomy, Yale Medical School.

317 Crown street, New Haven, Conn.

FEWKES, DR. J. WALTER.

Washington, D. C.

FIELD, GEORGE WILTON, A.B., Ph.D.

Associate Professor of Cellular Biology.

Brown University, Providence, R.I.

Fox, L. WEBSTER, M.D.

Morphology.

Anatomy.

Zoology, Ethnology.

Morphology..

Professor of Ophthalmology in the Medico-Chirurgical

College, Philadelphia, Penn.

1304 Walnut street, Philadelphia, Penn.

FROTHINGHAM, LANGDON, M.D.V.

Care Robt. Thode & Son, Dresden, Germany.

FULLER, GEORGE W., S.B.

Bacteriology.

Bacteriology.

Chief Chemist and Bacteriologist, Louisville Water Com

pany.

Louisville, Ky.

*GAGE, SIMON H., S.B. Vertebrate Morphology and Physiology. Associate Professor of Physiology and Lecturer on Micro

Geologist of the U.S. Geological Survey.
U.S. Geological Survey, Washington, D. C.

Geology.

GILL, THEODORE, M.D., Ph.D.

Ichthyology.

Smithsonian Institution, Washington, D. C.

GIRTY, GEORGE H., Ph.D.

Palæontology.

Assistant Palæontologist, U.S. Geological Survey, Wash

ington, D.C.

*GOODALE, GEORGE L., A.M., M.D., LL.D.

Professor of Botany, Harvard University.

Cambridge, Mass.

*Goode, G. BROWN, Ph.D., LL.D.

Botany.

Zoology.

Assistant Secretary of the Smithsonian Institution in charge

of the U.S. National Museum.

Smithsonian Institution, Washington, D. C.

GRATACAP, L. P., M.A., Ph.B.

Mineralogy and Geology.

Assistant Curator of Geology, American Museum of Natural

History, New York.

77th street and 8th avenue, New York, N. Y.

*GREENLEAF, R. W., A.M., M.D.

561 Boylston street, Boston, Mass.

GREGORY, EMILY L., Ph.D.

18 West both street, New York, N. Y.

HAGUE, ARNOLD.

Botany.

Botany.

Geology and Petrography.

Geology, Palæontology.

Geologist, U.S. Geological Survey.

U.S. Geological Survey, Washington, D. C.

*HALL, JAMES, A.M., M.D., LL.D.

State Geologist of New York.

Room 32, State Hall, Albany, N. Y.

HALSTED, BYRON D., D.Sc.

Botany.

Botanist and Horticulturist, Agricultural Experiment Station.

New Brunswick, N.J.

HARE, HOBART AMORY, B.Sc., M.D.

Physiology.

Professor of Therapeutics in Jefferson Medical College of
Philadelphia.

222 South Fifteenth street, Philadelphia, Penn.

HARGITT, CHARLES W., Ph.D.

Professor of Biology, Syracuse University.

Syracuse University, Syracuse, N. Y.

HARRISON, Ross GRANVIlle, A.B.

Bryn Mawr, Penn.

*HEILPRIN, ANGELO.

Zoology.

Animal Morphology.

Palæontology and Geology.

Professor of Invertebrate Palæontology at, and Curator in
Charge of, the Academy of Natural Sciences of Phila-
delphia, and Professor of Geology at the Wagner Free
Institute of Science.

Academy of Natural Sciences, Philadelphia, Penn.

HENCHMAN, ANNIE P.

8 Frisbie place, Cambridge, Mass.

*HENSHAW, Samuel.

Secretary, Boston Society of Natural History.

Zoölogy.

Entomology.

Boston Society of Natural History, Boston, Mass.

HERRICK, F. H., A.B., Ph.D.

Biology.

Professor of Biology, Adelbert College, Western Reserve
University.

Adelbert College, Cleveland, O.

HILL, FRANK A.

Geology.

Geologist in Charge, Anthracite District, State Survey of

Pennsylvania.

1011 South 48th street, Philadelphia, Penn.

HODGE, CLIFTON F., A.B., Ph.D. Physiology and Neurology.

Clark University.

Worcester, Mass.

HOUGH, THEODORE, A.B., Ph.D.

Physiology.

Assistant Professor of Physiology, Massachusetts Institute of
Technology.

Massachusetts Institute of Technology, Boston, Mass.
HOWARD, L. O., M.S.

Entomology.

Chief, Divison of Entomology, U.S. Department Agriculture.
Washington, D. C.

HOWELL, WILLIAM H., A.B., Ph.D.

Physiology.

Professor of Physiology, Johns Hopkins University.
Johns Hopkins University, Baltimore, Md.

Curator of the Boston Society of Natural History, and Assistant in Museum of Comparative Zoology, at Cambridge, Mass.

Boston Society of Natural History, Boston, Mass.

HUNT, REID, A.B.

Fellow, Johns Hopkins University.

Baltimore, Md.

IVES, J. E.

Physiology.

Invertebrate Zoology.

Drexel Institute of Art, Science, and Industry, Philadel

phia, Penn.