Image:1582.jpg|Anonymous, Greenhouse, in [[A. J. Downing]], ed., ''Horticulturist'' 5, no. 3 (September 1850): 110.
Image:0218.jpg|Augustus Weidenbach, ''Belvedere'', c. 1858. A greenhouse is visible attached to the left of the image, coming up to the house.
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Changes - History of Early American Landscape Design
A Project of the Center for Advanced Study in the Visual Arts, National Gallery of Art
History of Early American Landscape Design

Changes

[http://www.nga.gov/content/ngaweb/research/casva/research-projects.html A Project of the National Gallery of Art, Center for Advanced Study in the Visual Arts ]
A Project of the Center for Advanced Study in the Visual Arts

National Gallery of Art, Washington