Isaac Bérard & His Machine

A young man shovels coal at night next to a distillation machine.
Isaac Bérard (1770-1819) was a wine distiller who invented a new and economical distillation process, and created a machine that rivaled the ones commonly used at the time.

The caption reads in the original French: Isaac Bérard fait seul, la nuit, l’expérience de son cylindre analyseur à diaphragme métallique.