on Protozoa, [46];
Archiv für Protistenkunde, [46];
on chromidia in Sarcodina, [52] n.;
on Trichosphaerium sieboldi, [54], [56] f.;
on bud-fission in Rhizopoda, [55];
on syngamic processes of Rhizopoda, [57];
on reproduction in Foraminifera, [67], [69] n.;
on Heliozoa, [71];
on Sporozoa, [94];