Here is the reference. I'm wondering how he experimentally proceeded to derive the fact the if we pass 96485 Coulombs through a solution, then 1 gram equivalent of substance is electrolyzed.
1$\begingroup$ Details are on the Wiki, first reference. This is too broad of a question. I think what you might be interested in, from my previous answer, is how did he determine the so-called Faraday constant in his own time. This is the number which allowed e/m. $\endgroup$– AChemJan 7, 2021 at 20:42
$\begingroup$ Yes, that’s exactly what I’m looking for. $\endgroup$– ric.sanJan 8, 2021 at 12:40
1$\begingroup$ The answer to your query is in Experimental Electrochemistry By Nevil Monroe Hopkins · 1905. It is beautifully described on page 80 onwards. The book is freely available from Google Books $\endgroup$– AChemJan 9, 2021 at 5:53