Beiträge zur Biologie der Pflanzen

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    THIS part contains the following memoirs:—Dr. Oesielski, “Investigations on Jhe downward Curvature of the Root.” Dr. Frank “On the position and direction of floating and submersed parts of plants.” Dr. Cohn. On Parasitic Alga.”Dr. Schroeter “On certain Pigments formed by the Bacteriæ,” and Dr. Cohn's “Investigations on Bacteriæ.”

    Beiträge zur Biologie der Pflanzen.

    Herausgegeben von Dr. Ferdinand Cohn. Zweites Heft: (Breslau 1872.)

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    Beiträge zur Biologie der Pflanzen . Nature 7, 300–301 (1873) doi:10.1038/007300a0

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