Wanderer above the Sea of Fog

The Watzmann

Neubrandenburg

Chalk Cliffs at Ruegen

The Sea of Ice

The Port of Greifswald

Life stages

Woman in Front of the Setting Sun

On a Sailing Ship

Morning in the Riesengebirge

Ruins of the Oybin

Hutten's Grave

Tanne und drei Studien von Fichten

Plate 190 — Herbarium Blackwellianum emendatum et auctum, id est, Elisabethae Blackwell collectio stirpium, v.1-2

Plate 378 — North American wild flowers, v.5 (1925)

Fichte

Study of Vines and Beech Trees

Tab. LXI — Plantae selectae quarum imagines ad exemplaria naturalia Londini, in hortis curiosorum nutrita, v.1-10

Grantre; landskap

Baumgruppe

Juniper

Study of a Hemlock, North Conway, New Hampshire

Gruppe junger Bäume

Engelmann Spruce (Picea engelmanni)