Revision of the Echini - 1872
Revision of the Echini - 1873
The Panamic Deep Sea Echini - 1904
Hawaiian and other Pacific Echini. The Clypeasteridae, Arachnoididae, Laganidae, Fibulariidae and Scutellidae - 1914
Hawaiian and other Pacific Echini. The Echinoneidae, Nucleolitidae, Urechinida, Echinocorythidae, Calymnidae, Pourtalesiidae, Palaeostomatidae, Aeropside, Palaeopneustidae, Hemiasteridae, and Spatangidae - 1917