Clouds over Mountains, Mexico

Twilight over the Hudson River, Hudson, New York, Part Two

Sunbeams above the Catskills, Hudson, New York, Part Two

Mountainous Landscape, Mexico

Mexican Landscape

Catskill Mountains at Sunset, Hudson, New York

Mountains and Valley, Mexico

Sunbeams above the Catskills, Hudson, New York

Cloudy Sky over Mountains

Wolkenlucht met kleurnotities

Sketches of a Building and Mountains, Mexico

Landscape near San Miguel de Chimbo, Ecuador

Rugged Mountain Range, Ecuador

Landschap, mogelijk een duinlandschap

Indian Encampment on the Coast of Grand Manan Island, Canada

Popocatépetl, Mexico

Sunset over a Mountainous Landscape

Canyon View, El Yemen Valley, Palestine (Israel)

Approaching Mt. Hor

Berglandschap, Java

Cloud Sketch, Hudson, New York

Moon and Clouds, Terni, Italy

Sketches of a Hilltop Town, Italy

Mountain Sketches

Sun Rays behind Clouds, Hudson, New York