Talk:Henri de Lacaze-Duthiers

Mucographe process
How much information should I include? The reference to his Royal Society communication? The molecular formula of the main dye molecule (dibromoindigo)? The fact that the resulting images smelt strongly and unpleasantly? The part of the shellfish the dye precursor is extracted from? Itreallyisme (talk) 20:14, 17 December 2022 (UTC)