File:American Journal of Psychology (Volume 21) Fig 22.jpg

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English: Young Crow 1 at his favorite play with the box. He was swinging on the door. When he jumped off the door usually closed and he or the Old Crow must open again. This is important for it brings the tests in rapid succession, a very favorable condition for imitation:
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Source https://en.wikisource.org/wiki/Page:American_Journal_of_Psychology_Volume_21.djvu/73
Author Editor G. Stanley Hall

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:American_Journal_of_Psychology_(Volume_21)_Fig_22.jpg

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current17:41, 3 August 2021Thumbnail for version as of 17:41, 3 August 20211,447 × 1,019 (1.13 MB)Sp1nd01 (talk | contribs)Uploaded a work by Editor G. Stanley Hall from https://en.wikisource.org/wiki/Page:American_Journal_of_Psychology_Volume_21.djvu/73 with UploadWizard

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