Ueber die Hüllen, welche den Dotter des Vogeleies umgeben / von W. v. Nathusius.

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Ueber die Hüllen, welche den Dotter des Vogeleies umgeben / von W. v. Nathusius. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.