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  • Nature Publishing Group  (2)
  • Cambridge University Press
  • 1950-1954
  • 1935-1939  (2)
  • 1937  (2)
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Years
  • 1950-1954
  • 1935-1939  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 139 (1937), S. 414-414 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT has recently been shown by Marshall and Bowden1 that not only duration but also intensity of illumination can affect the onset of a breeding season, and that ultra-violet as well as visible light is effective. These discoveries have an important bearing on seasonal phenomena ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 140 (1937), S. 890-891 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE frequently hears it said that the swallow passes the winter in South Africa, though a moment's reflection shows that it is summer in South Africa when the swallow is there. There appear to be no words for times of year, longer than a calendar month, applying to the whole world. Again, when ...
    Type of Medium: Electronic Resource
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