.: 7. Brussels, Van Oest 1910, in-4°, modern buckram, back-label, orig. wrapp. preserved, 199 pp + 55 plts h.t. , index. (Freitag No. 6783).
.: 4. Brussels, Van Oest 1910, in-4°, sewn, orig. wrapp., 199 pp + 55 plts h.t. , index.(Freitag No. 6783).