Career
His Coleoptera collection is held by the Natural History Museum of Geneva. The present location is unknown. He wrote Noctuelles et géomètres d"Europe.
Volumes I-IV. Genève, Villa les Iris (1909–1913, 1917–1919) online, an illustrated revision of the Noctuidae (with 81 plates) and the Geometridae (with 70 plates) of Europe.