. Bulletin international de l'Acadmie des sciences de Cracovie, Classe des sciences mathmatiques et naturelles. Anzeiger der Akademie der Wissenschaften in Krakau. Reihe B, Biologische Wissenschaften. Natural history; Natural history -- Poland. 6&.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Akademja Umiejetnoþsci w Krakowie. Wydzial Matematyczno-Przyrodniczy. Cracovie : Impr. de l'Universit

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