Botanical Sketches, Maine

Study of Hemlock near White Lake

Tree by a Stream, Catskill, New York

Sketches of Trees

Evergreen Tree, Catskill, New York

Maple Top on Road to Jackson, New Hampshire

Studie af et træ og af et krat til Glyptotekets "Efterårslandskab. Frederiksborg Slot i mellemgrunden"

Trees by Streeke Pond, Catskill, New York

Study of foliage

Studie af ungt bøgetræ med kun lidt løv.

Sketch of a Tree, Catskill, New York

Study of Pine Tree, Shawangunk Mountains

Pine Trees, Austria

A Fir Tree on the Way from East Cowes

Sketch of a Tree

Trees in Mexico

Boomstudie

Landschap met bomen

Tree

Pine Trees Along a Rocky Bank, Catskill, New York

Birch Boughs, Catskill Mountains

To træer med lav underskov

Study of foliage

Merron

Kauterskill Clove