Image: Historic Benzene Formulae Armstrong (original)
Historic_Benzene_Formulae_Armstrong_(original).png (504 × 453 pixels, file size: 11 KB, MIME type: image/png)
Description: Henry Edward Armstrong's proposal for the benzene structure in its original, taken from:
Title: Historic Benzene Formulae Armstrong (original)
Credit: An_Explanation_of_the_Laws_which_govern_Substitution_in_the_case_of_Benzenoid_Compounds.pdf
Author: Henry Edward Armstrong (1848–1937)
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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