118 REPORT OF THE COMMISSIONER OF FISHERIES. 
A statistical study of Fundulus majalis, with a view to the determination of selective char- 
acters.—Francis Bertody Sumner, Ph. D., instructor in zoology, College of the City 
of New York, and director of Woods Hole Laboratory. 
In addition to this work the compilation of the catalogue of the fauna and flora of 
the Woods Hole region, elsewhere referred to, was conducted by Doctor Sumner, 
with the assistance of Mr. Raymond C. Osburn, graduate student, Columbia Univer- 
sity, and others. 
The color changes of fishes.—F. C. Carlton, graduate student, Harvard University. 
Experiments upon phototactie responses of star-fish.—Grant Smith, graduate student, 
Harvard University. 
Studies of the morphology of Hydromeduse.—Henry Farnham Perkins, Ph. D., 
instructor in biology, University of Vermont. 
Minute structure of the rods of the retina of jfishes.—Arthur D. Howard, M. §., grad- 
uate student, Harvard University. 
A study of a parasite of the oyster (Bucephalus cucullus McC.).—John Y. Graham, 
Ph. D., professor of biology, University of Alabama. 
Collection of material for histological studies.—Ulric Dahlgren, M. 8., assistant pro- 
fessor of histology, Princeton University. 
(1) Dimorphism in Metridium marginatum. (2) The blood parasites of the turtle.— 
Clarence W. Hahn, A. M., graduate student, Harvard University. 
The effect of heredity on the dimorphism exhibited in the optic chiasma of teleosts.— 
Austin P. Larrabee, A. M., graduate student, Harvard University. 
The reaction of eyeless fish to light—Joseph A. Long, graduate student, Harvard — 
University. 
Comparative study of muscular tonus.—Samual Steen Maxwell, Ph. D., instructor in 
physiology, Harvard Medical School. 
Studies on the phosphorescence of ctenophores.—Amos W. Peters, Ph. D., instructor 
in physiology, University of Illinois. 
Studies of the gregarines.—George G. Scott, M. A., tutor in the College of the City 
of New York. 
Phototaxis in Copepoda.—John A. Shott, A. M., professor of biology and physics, 
Westminster College. 
(1) Crustacean metamorphosis. (2) Studies of the head and alimentary canal of 
Diptera.—Millett T. Thompson, Ph. D., instructor in zoology, collegiate department, 
Clark University. 
BEAUFORT LABORATORY (DR. CASWELL GRAVE, DIRECTOR). 
At the beginning of the fiscal year the laboratory at Beaufort, N. C., 
had been open for over a month, and it was continued in operation 
until September -30; during July and August all of the rooms were 
occupied by investigators and student assistants. The facilities of the 
laboratory had been improved in the preceding fiscal year by the 
installation of a pumping plant, and during the summer of 1903 it 
was possible to keep living material for study in the laboratory and to 
maintain an instructive exhibit in the aquaria, where from 50 to 200 
live animals, principally small and moderate sized fishes, with a few 
species of invertebrates, were on exhibition daily. Owing to the lack 
of light and aeration in the large tanks, it was found impossible to 
maintain an exhibit of tae iarger species of fishes, but plans for over- 
coming this difficulty are now under consideration. The laboratory 
