Trouvelot Astronomy - In 1875 Étienne Léopold Trouvelot, using the [Harvard] observatory’s 15-inch refracting telescope, produced this drawing of sunspots. At the time the human eye could detect more detail than photgraphic plates. (modern photos of sunspots) Trouvelot is also noted for the introduction of the Gypsy Moth to the U.S. More of thes illustrations on the marvelous BibliOdyssey Blog, which gathers amazing illustrations from old books. This illustration is from the New York Public Library’s collection. Via BoingBoing
