Poznan 1921, published by M. Arcta in Warsaw. 10x16 cm, pp. 103, softcover. Good condition (mild soiling and paper sticker on cover).
Description of fauna of Warsaw and suburban parks and gardens (Wierzbno, Królikarnia, Siekierki, Saska Kępa, Bielany, Młociny, Łomianki, Wilanów, Ursynów, Natolin, Powsin, Jeziorna, Konstancin, Skolimów, Żabieniec, Czersk, Jabłonna, Falenica, Świder, Otwock and many others).