Arthur M. Young on Evolution and the Great Chain: Revision history

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21 September 2023

23 November 2021

  • curprev 08:4408:44, 23 November 2021unknown talk 486 bytes +43 No edit summary
  • curprev 08:4308:43, 23 November 2021unknown talk 443 bytes +443 Created page with " Video via =Description= "Philosopher Arthur M. Young, inventor of the Bell helicopter, describes three different types of evolution: physical evolution of the form of the..."