. Bulletin de la SociÃ©tÃ© fribourgeoise des sciences naturelles : compte-rendu. Natural history; Science. BULLETIN DE LA SOCIÃTÃ FRIBOURGEOISE DES SCIENCES NATURELLES COMPTE-RENDU 1920-1921 ET 1921-1922 VOL. XXVI Avec 3 graphiques et 1 photographie. aÂ« p Ã¤\ â FRIBOURG IMPRIMERIE FRAGNIÃRE FRERES 1923. 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 SociÃ©tÃ© fribourgeoise des sciences naturelles. Fribourg : Imprimerie An

. Bulletin de la SociÃ©tÃ© fribourgeoise des sciences naturelles : compte-rendu. Natural history; Science. BULLETIN DE LA SOCIÃTÃ FRIBOURGEOISE DES SCIENCES NATURELLES COMPTE-RENDU 1920-1921 ET 1921-1922 VOL. XXVI Avec 3 graphiques et 1 photographie. aÂ« p Ã¤\ â FRIBOURG IMPRIMERIE FRAGNIÃRE FRERES 1923. 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 SociÃ©tÃ© fribourgeoise des sciences naturelles. Fribourg : Imprimerie Ant. Henseler

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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectscience

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