Science Art: Wels (Catfish) by Heinrich Harder, from Unsere Süßwasserfische by Dr. Emil Walter, 1913.
A color plate from the BioDiversity Library’s edition of Our Freshwater Fish, first published in Leipzig in 1913.
Heinrich Harder, as well as illustrating natural… Read the rest “Science Art: Wels (Catfish) by Heinrich Harder, from Unsere Süßwasserfische by Dr. Emil Walter, 1913.”