Talk:Supplementary hypothesis

Video
Is there any video explication of the supplementary hypothesis for use either in teaching or in general explanation? MaynardClark (talk) 05:23, 20 November 2019 (UTC)

Old vs. New Supplementary hypothesis
Is this article distinguishing between the supplementary hypothesis popular until the 1860s and the "new" supplementary hypothesis developed in the 1970s? Ltwin (talk) 17:38, 23 March 2024 (UTC)