Bull. Harvard Mus. Comp. Zoöl., vol. xiii, no. 4, pp. 107-150, Cambridge, 1887.
On certain Medusæ from New England.
Bull. Harvard Mus. Comp. Zoöl., vol. xiii, no. 7, pp. 209-240, Cambridge, 1888.
On the development of the calcareous plates of Asterias.
Bull. Harvard Mus. Comp. Zoöl., vol. xvii, no. 1, pp. 1-56, Cambridge, 1888.
Are there deep-sea Medusæ?
Amer. Journ. Sci. and Arts, 3d ser., vol. xxxv, pp. 166-179, New Haven, 1888. Reprinted in Ann. and Mag. Nat. Hist., 6th ser., vol. 1, no. 4, pp. 247-260, London, 1888.
On a new Physophore, Plœophysa, and its relationship to other Siphonophores.
Ann. and Mag. Nat. Hist., 6th ser., vol. i, no. 5, pp. 317-322, London, 1888.
On a new mode of life among Medusæ.