Original text or historical translation: web.mit.edu/llbjr/Public/www/Coulomb_El_1785.pdf
First memoir for 1785, printed in the Academy volume in 1788, pp. 569–577. Original French scan and MIT-hosted English translation (2000, revised 2012). Apparatus construction, repulsion observations and total torsion-angle comparison. Translation contributors are not asserted to be authors of the original memoir.