Soap Making

Interior view of a tallow soap factory showing workers attending to the last stage of the kettle process, when the mix of fat and alkali is heated one last time and the neat soap at the surface is poured into large molds, where it will be allowed to cool and harden.

The caption reads in the original French: fabrication du savon de suif dans une usine des environs de Paris. (Opérations de la coction du savon et du coulage dans les mises.)