1. Die Accommodation des Kephalopodenauges
2. 1901 Ueber primitive Sehorgane. Wiener klinische Wochenschrift, Nr. 11, 12, und 13, S. 1-73.
3. 1909 A report upon the mollusk fisheries of Massachusetts. The Commonwealth of Mass. Special Report of the Mass. Comm. on Fisheries and Game.