Der deutsche Arzt und Naturforscher Gustav Woldemar Focke nimmt den interessierten Leser in dem vorliegenden Band mit auf die Reise zu den wissenschaftlichen Entdeckungen und Kenntnissen uber Infusorien (z. B. Flagellaten, Wimpertierchen und Amoben) Mitte des 19. Jahrhunderts. Dieses Buch ist ein Nachdruck der langst vergriffenen Originalausgabe aus dem Jahr 1854.

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