Portretten van Louis Pasteur, Jacques-Joseph Grancher en Jean-Martin Charcot before 1892

This is a set of three portraits of prominent French scientists: Louis Pasteur, Jacques-Joseph Grancher and Jean-Martin Charcot. The portraits were published in a book before 1892, likely as part of an article discussing the advancements in photographic reproduction techniques. They feature realistic depictions, using subtle lines and shading to capture the unique features of each individual. These images are a reminder of the important role photography played in disseminating knowledge during the late 19th century.