Science Source ftp Apr 2015

Detail of "Equestrian Portrait of Napoleon I" by Joseph Chabord, 1810.

Detail of a mural by Jose Clemente Orozco, portraying Miguel Hidalgo y Costilla, in the Jalisco Governmental Palace, Guadalajara, Mexico. Costilla was...

Pennsylvania Station was a historic railroad station, named for the Pennsylvania Railroad, its builder and original tenant, and shared its name with s...

Pennsylvania Station was a historic railroad station, named for the Pennsylvania Railroad, its builder and original tenant, and shared its name with s...

Pennsylvania Station was a historic railroad station, named for the Pennsylvania Railroad, its builder and original tenant, and shared its name with s...

Bumper to bumper traffic on the George Washington Bridge, New York City, circa 1969.

Commuters boarding a Penn Central train in Scarsdale, New York, circa 1976. Most of the commuters are white and male, while women number roughly 1 in...

Penn Central railway commuters waiting on a crowded platform in Scarsdale, New York, circa 1976. Most of the crowd is white and male, while women numb...

Penn Central railway commuters waiting in Scarsdale, New York, circa 1975.

Spectators at the Central Park Zoo, New York City, 1938.

Rush hour in Times Square, New York City, 1976.

Looking east in the Holland Tunnel, showing traffic in the north tube, November 10th, 1950.

An etching by Gottlob L. Briem (1899-1972), showing a tower of the George Washington Bridge under construction in New York City, c. 1930. The bridge w...

Commuters getting off the train at Lackawanna-Erie railway station in Hoboken, New Jersey, circa 1970s. Note that most of the commuters are white and...

Mosaic floor in house of Orpheus showing dolphins. Roman ruins at Volubilis, 2nd-3rd Century AD. Volubilis, or Walili, is an archeological site in Mor...

Pagan (now Bagan) is an ancient city located in the Mandalay Region of Burma (Myanmar). From the 9th to 13th centuries, the city was the capital of th...

Gafsa, Tunisia. Detail of a group of spectators at circus from a 5th century mosaic. Now in Bardo Museum, Tunis. The Roman circus consisted of tiers...

Mexico, Bonampak Mayan ruins. Incised stone carving of dignitaries making offering to a priest or god. While the site is not overly impressive in term...

Hut of Ernest Shackleton now preserved as historical shrine. Cape Royds, Antarctica, is a dark rock cape forming the west extremity of Ross Island, fa...

Hut of Ernest Shackleton now preserved as historical shrine. Cape Royds, Antarctica, is a dark rock cape forming the west extremity of Ross Island, fa...

Shrunken Head, Jivaro Indian, Ecuador. Although there were many headhunting cultures throughout the world, only one group was known for ancient practi...

"Tweetsie" train from Appalachia book. The East Tennessee and Western North Carolina Railroad (reporting mark ETWN), affectionately called the "Tweets...

Staff members at the end of the first day on which they cleaned up the building preparing for classes at Negro Baptist Seminary in Meridian, Mississip...

"Freedom School" Staff Members Relax, 1964. Freedom Schools were temporary, alternative free schools for African Americans mostly in the South. They w...

Wright Brothers glider. Wilbur Wright pilots the test glider while Orville Wright and an unidentified helper look on after a successful assisted take-...

Illustration of Alexander Fleming (August 6, 1881 - March 11,1955), the Scottish biologist most famous for discovering penicillin in 1928. He is depic...

Illustration of Alexander Fleming (August 6, 1881 - March 11,1955), the Scottish biologist most famous for discovering penicillin in 1928. He is depic...

Illustration of Alexander Fleming (August 6, 1881 - March 11,1955), the Scottish biologist most famous for discovering penicillin in 1928. He is depic...

Alexander Fleming depicted with a petri dish containing Penicillium notatum (the mold from which the antibiotic penicillin originally derived), as wel...

A portrait of Count Hilaire de Chardonnet (1839-1924). Chardonnet was a French chemist and industrialist who invented the process of manufacturing ray...

Burke in a prison cell wearing leg irons. William Burke (1792-1829) was born in Ireland and emigrated to Scotland about 1817 leaving behind a wife and...

The execution by hanging is taking place on a platform in a crowded metropolitan street. Spectators are leaning out windows, sitting on roof tops and...

Joseph Louis Gay-Lussac (1778-1850) was a French chemist and physicist known for his studies on the physical properties of gases. His first major inve...

Joseph Louis Gay-Lussac (1778-1850) was a French chemist and physicist known for his studies on the physical properties of gases. His first major inve...

Joseph Louis Gay-Lussac (1778-1850) was a French chemist and physicist known for his studies on the physical properties of gases. His first major inve...

Ernst Mach (1838-1916) was an Austrian physicist and philosopher. Mach's main contribution to physics involved his description and photographs of spar...

Engraving of Magendie from 1822. Fran?ois Magendie (1783-1855) was a French physiologist, considered a pioneer of experimental physiology. He is known...

Woodcut, 1496. Albertus sits at a lectern, he holds a rod in one hand while instructing four pupils who are seated on low stools before him. Albertus...

Woodcut, 1496. Title page with various symbols: scale, compass, circle with the sun at the zenith and the moon at the nadir, woman standing within the...

Woodcut, 1496, Human head in left profile with three circles drawn and labeled indicating functions of those portions of the brain. Appears in Magnus'...

The Reverend Thomas Robert Malthus (1766-1834) was an English scholar, influential in political economy and demography. Malthus is chiefly remembered...

Patrick Manson (1844-1922) was a Scottish physician, parasitology and founder of the tropical medicine field (deals with health problems that occur un...

Patrick Manson (1844-1922) was a Scottish physician, parasitology and founder of the tropical medicine field (deals with health problems that occur un...

?tienne-Jules Marey (March 5, 1830 - May 21, 1904) was a French scientist, physiologist and chronophotographer. He started by studying blood circulati...

John Mayow (1640 thru 1643-1679) was an English chemist, physician, and physiologist who worked in a field that is sometimes called pneumatic chemistr...

John Mayow (1640-1679) was an English chemist, physician, and physiologist who worked in a field that is sometimes called pneumatic chemistry. An inve...

John Mayow (1640-1679) was an English chemist, physician, and physiologist who worked in a field that is sometimes called pneumatic chemistry. An inve...

Ephraim McDowell (1771-1830) was an American physician. On Christmas morning, 1809, he made medical history be becoming the first doctor to successful...

Richard Mead (1673-1754) was an English physician. His Mechanical Account of Poisons appeared in 1702, and, in 1703, he was admitted to the Royal Soci...

Richard Mead (1673-1754) was an English physician. His Mechanical Account of Poisons appeared in 1702, and, in 1703, he was admitted to the Royal Soci...