The Cambridge natural history, Vol. 01 (of 10)

by Marcus Hartog; Sydney J. Hickson; E. W. MacBride; Igerna Brünhilda Johnson Sollas

of Trichosphaerium sieboldii, [54];

of Arcella vulgaris, [55];

of Diffugia pyriformis, [55];

of Hyalosphenia lata, [55];

of Quadrula symmetrica, [55];

of Foraminifera, [58] f., [61], [63], [65], [67], [68], [69];

of Allogromidiaceae, [60];

of Microgromia socialis, [60];

of Lieberkühnia, [61];

of marine Foraminifera, [62] f.;