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  1. Heligoland as an ornithological observatory; the result of fifty years' experience,
    By: Gätke, Heinrich. - Rosenstock, Rudolph.
    Publication info: Edinburgh,D. Douglas,1895.
    Contributed by: University of California Libraries (archive.org)
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  2. Heligoland as an ornithological observatory; the result of fifty years' experience, by Heinrich Gätke. Tr. by Rudolph Rosenstock.
    By: Gätke, Heinrich, - Rosenstock, Rudolph.
    Publication info: Edinburgh,D. Douglas,1895.
    Contributed by: American Museum of Natural History Library
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  3. Text-book of zoology;
    By: Schmeil, O. - Cunningham, Joseph Thomas, - Rosenstock, Rudolph.
    Publication info: London,A. and C. Black,1901.
    Contributed by: Cornell University Library
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  4. Text-book of zoology; treated from a biological standpoint, by Dr. Otto Schmeil; tr. from the German by Rudolf Rosenstock, M. A.; ed. by J. T. Cunningham, M. A.
    By: Schmeil, O. - Cunningham, Joseph Thomas, - Rosenstock, Rudolph.
    Publication info: London,A. and C. Black,1901.
    Contributed by: University of California Libraries (archive.org)
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