Design no. 1403The Henslow system. Created by Professor John S. Henslow who was the mentor and teacher of Charles Darwin. He was a rigorous researcher who recorded patterns of variation within and between plant populations and was motivated to understand the nature of species. Printed with Japanese archival ink on a matte Hahnemhle paper in our own studio in rural Copenhagen, Denmark. Design no. 1403 Explore the entire Iconographic Atlas collection