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Portrait of Édouard and Marie-Louise Pailleron

Portrait of Édouard and Marie-Louise Pailleron (1881)

John Singer Sargent (American, 1856-1925)
Thanksgiving in Camp

Thanksgiving in Camp (1862)

Winslow Homer (American, 1836-1910)
Pharmacology; Research Associate Program of the National Institutes of Health

Pharmacology; Research Associate Program of the National Institutes of Health (1981)

National Institutes of Health (American, 1887-)
The weaker sex. II

The weaker sex. II (1903)

Charles Dana Gibson (American, 1867 - 1944)
Performers in hot air balloon

Performers in hot air balloon (1916)

Mark Lawson (American, 20th Century)
Old bridge near Culpepper

Old bridge near Culpepper (1863)

Edwin Forbes (American, 1839 – 1895)
View of the architectural iron works 13th & 14th East River, New York

View of the architectural iron works 13th & 14th East River, New York

Sarony, Major & Knapp Lith. (American, 19th/20th century)
Yellow Pentstemon (Pentstemon confertus)

Yellow Pentstemon (Pentstemon confertus) (1904)

Mary Vaux Walcott (American, 1860-1940)
Magnolia Gardens

Magnolia Gardens

Alfred Hutty (American, 1877-1954)
Fredrika H Jackson

Fredrika H Jackson (1899)

Frank Chouteau Brown (American, 1876 – 1947)
Recherches sur les poissons fossiles Pl.342

Recherches sur les poissons fossiles Pl.342 (1833-1843)

Louis Agassiz (American, 1807 – 1873)
Blankenberge No.3

Blankenberge No.3 (1875)

William Stanley Haseltine (American, 1835-1900)
Venice

Venice (1900)

George Elbert Burr (American, 1859 – 1939)
Child’s Bonnet

Child’s Bonnet (1935-1942)

Mary E. Humes (American, 20th Century)
Enhancing the NIH scientific enterprise through computer science and technology

Enhancing the NIH scientific enterprise through computer science and technology (1987)

National Institutes of Health (American, 1887-)
The day after arriving at the journey’s end

The day after arriving at the journey’s end (1900-1905)

Charles Dana Gibson (American, 1867 - 1944)
Mrs. Richard Kent (Hannah Gookin) 

Mrs. Richard Kent (Hannah Gookin)  (ca. 1746)

Joseph Badger (American, 1708-1765)
Surveyor’s Wagon in the Rockies

Surveyor’s Wagon in the Rockies (c.1859)

Albert Bierstadt (American, 1830-1902)
Indian Prince, Palace of Agra

Indian Prince, Palace of Agra (1883-1893)

Edwin Lord Weeks (American, 1849-1903)
Among the Pilot Mountains, New Hampshire

Among the Pilot Mountains, New Hampshire

William Louis Sonntag (American, 1822–1900)
The voyagers examined the web of cloth

The voyagers examined the web of cloth (1921)

Virginia Frances Sterrett (American, 1900-1931)
Summer Landscape (Langhorne, Pennsylvania)

Summer Landscape (Langhorne, Pennsylvania) (circa 1906)

Hugh Henry Breckenridge (American, 1870-1937)
The Dry Leaves Lasted Longer Than She

The Dry Leaves Lasted Longer Than She (1899)

Frederic Remington (American, 1861 - 1909)
Plate XI: Fungi and Protozoa

Plate XI: Fungi and Protozoa (1914)

George Chandler Whipple (American, 1866 – 1924)
That settles it!

That settles it! (1894)

Louis Dalrymple (American, 1866 – 1905)
Days historical col. Mill – men ploughing farm house barn – milking group.

Days historical col. Mill – men ploughing farm house barn – milking group. (1840-1870)

James Fuller Queen (American, 1820-1886)
Springtime Stroll

Springtime Stroll

Robert Reid (American, 1862-1929)
Purgatory Cliff

Purgatory Cliff (1876)

William Trost Richards (American, 1833-1905)
Boy’s Coat

Boy’s Coat (c. 1937)

Nancy Crimi (American, 20th Century)
Jug

Jug (c. 1937)

Giacinto Capelli (American, 20th Century)