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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
Subjects: 59.82(43.51:22) Birds Germany Helgoland Migration
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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)
Subjects: Birds Germany Helgoland Migration Natural history
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Die Vogelwarte Helgoland / von Heinrich Gätke ; herausgegeben von Rudolf Blasius.
By: Gätke, Heinrich, - Blasius, Rudolf,
Edition: 2. verm. Aufl.
Publication info: Braunschweig :Joh. Heinr. Meyer,1900.
Contributed by: American Museum of Natural History Library
Subjects: 59.82(43.51:22) Birds Germany Helgoland Migration
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