Heinrich Gravenhorst

thumb Christoph Johann Heinrich Gravenhorst (26 September 1823 – 21 August 1898) was a German schoolteacher and beekeeper who wrote an influential textbook on apiculture called the ''Der Praktische Imker'' (1873) which went into several editions. He also founded a beekeeper's periodical called ''Illustrierte Bienenzeitung'' in October 1883. He invented a straw beehive with movable frames which is called Gravenhorst's Bogenstülper. Provided by Wikipedia
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by Aeschylus ed. by Gravenhorst, Heinrich, Aeschylus
Published 1891
Other Authors: ...Gravenhorst, Heinrich...
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