Amer. Naturalist, vol. xvii, pp. 595-597, Phila., 1883.
The embryonic tentacular knobs of certain Physophoræ.
Amer. Naturalist, vol. xvii, pp. 667-668, Phila., 1883.
Note on Alaurina prolifera Busch.
Amer. Naturalist, vol. xvii, pp. 668-669, Phila., 1883.
Selections from embryological monographs. III. Acalephs and Polyps. J. Walter Fewkes and E. L. Mark.
Mem. Harvard Mus. Comp. Zoöl., vol. ix, no. 3, pp. 1-45, Cambridge, 1884.
Bibliography to accompany “Selections from Embryological Monographs, compiled by Alexander Agassiz, Walter Faxon, and E. L. Mark.” Part III.—Acalephs.
Bull. Harvard Mus. Comp. Zoöl., vol. xi, no. 10, pp. 209-238, Cambridge, 1884.
Do crows carry objects in their claws?