. Dokumente zur Geschichte der Zeugungslehre. Eine historische Studie. Reproduction. •'y o •..-. -.^ .o; .^\; - •... a b c Fig. 12 a—c. Kleinere Abschnitte von Eiern von Asterias glacialis. Nach Fol. (1877, Commencement de Thenogenie Fig. 14. 16, 18.) a, b, c drei verschiedene Stadien vom Eindringen eines Samenfadens in das 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 Hertwig, Oscar, 1849-1922. Bonn, F. Cohen

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Keywords: ., bookaut, bookcentury1900, bookdecade1910, booksubjectreproduction