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The cancer prevention test

The cancer prevention test (1985)

National Institutes of Health (American, 1887-)
Pencil exercise, no. 2 – lying dog

Pencil exercise, no. 2 – lying dog (1844)

Richard Sanger Smith (American, 1831-1887)
Untitled

Untitled (1900-1905)

Charles Dana Gibson (American, 1867 - 1944)
Tawny thrush

Tawny thrush (1827–1838)

John James Audubon (American, 1785-1851)
Recherches sur les poissons fossiles Pl.352

Recherches sur les poissons fossiles Pl.352 (1833-1843)

Louis Agassiz (American, 1807 – 1873)
Chub

Chub (1889)

Allen & Ginter (American, 19th/20th Century)
Trouble in the street

Trouble in the street (1926)

Albert Sterner (American, 1863 – 1946)
They can’t be hitched to the same carriage

They can’t be hitched to the same carriage (1898)

John Samuel Pughe (American, 1870-1909)
Affinities

Affinities (1911)

Fred S. Tolman (American, 19th/20th century)
Signal station on the south side of the Rappahannock River. Seen through a glass from the Union camps

Signal station on the south side of the Rappahannock River. Seen through a glass from the Union camps (1863)

Edwin Forbes (American, 1839 – 1895)
Wood ibis

Wood ibis (1827–1838)

John James Audubon (American, 1785-1851)
Western Hemlock (Tsuga heterophylla)

Western Hemlock (Tsuga heterophylla) (1923)

Mary Vaux Walcott (American, 1860-1940)
Ptilorhynchus violaceus

Ptilorhynchus violaceus (1873)

Daniel Giraud Elliot (American, 1835 – 1915)
Shepherd’s Mystery: Blue tunic, green cape with red lining, brown bandage leggings

Shepherd’s Mystery: Blue tunic, green cape with red lining, brown bandage leggings (1934-1943)

Mary Merrill (American, 19th/20th century)
Reclining Female Nude

Reclining Female Nude

Carl Newman (American, 1858-1932)
Brown creeper. Californian nuthatch

Brown creeper. Californian nuthatch (1827–1838)

John James Audubon (American, 1785-1851)
Balsamroot (Balsamorhiza sagittata)

Balsamroot (Balsamorhiza sagittata) (1923)

Mary Vaux Walcott (American, 1860-1940)
Twelve Nude Boys at the Beach

Twelve Nude Boys at the Beach (ca. 1914)

Charles Demuth (American, 1883-1935)
Worldview Ad June summer 2010

Worldview Ad June summer 2010

Peace Corps (American, 20th Century)
Figure of a Woman

Figure of a Woman (1875)

Winslow Homer (American, 1836-1910)
Dividing The Chief’s Property

Dividing The Chief’s Property (circa 1905)

Joseph Henry Sharp (American, 1859-1953)
Stoneware Jar

Stoneware Jar (c. 1940)

Charles Caseau (American, 1880-?)
Study for ‘Christ’

Study for ‘Christ’ (1905)

Kenyon Cox (American, 1856-1919)
Two Girls

Two Girls (1879)

Winslow Homer (American, 1836-1910)
Devilsclub. (Echinopanax horridum)

Devilsclub. (Echinopanax horridum) (1925)

Mary Vaux Walcott (American, 1860-1940)
Newmann’s wonderful spirit mysteries

Newmann’s wonderful spirit mysteries (1911)

Donaldson Lith. Co (American, 1863-?)
James R. McConnell

James R. McConnell (ca. 1917-1925)

John Elliott (American, 1859-1925)
Halt of Wilcox’s Troops in Caroline street prevous[sic] to going in to battle–

Halt of Wilcox’s Troops in Caroline street prevous[sic] to going in to battle– (1862)

Arthur Lumley (American, 1837-1912)
Mother and Child

Mother and Child (c. 1906)

Gari Melchers (American, 1860-1932)
The Hrafnagja (pass out of Thingvalla Iceland)

The Hrafnagja (pass out of Thingvalla Iceland) (1862)

Bayard Taylor (American, 1825 – 1878)