Walt Whitman on Self and Cosmos: “the visible suggestion of God in space and time … The Milky Way, as if some superhuman symphony, some ode of universal vagueness, disdaining syllable and sound—a flashing glance of Deity, address'd to the soul”WHITMAN, WALT
(English) Autograph Manuscript beginning “The Spirit’s Hour.”. n.p., 1882
This wonderful manuscript reflects Whitman’s mysticism, connecting self and the cosmos.
(English) Autograph letter signed to Reverend John McVickar of Columbia University. Monticello, 30 March 1826
Jefferson and the study of political economy: “No country on earth requires a sound intelligence of it more than ours …”
In this fine unpublished letter, written just months before his death, Jefferson observes that he no longer reads books as demanding as those on political economy, adding, “I rejoice nonetheless to see that it is beginning to be cultivated in our schools.”
(APOLLO 11.) Armstrong, Neil
(English) Photograph of Buzz Aldrin standing on the moon with the American flag and the lunar module, signed on the mount by all three crew members: Armstrong, Aldrin, and Collins and additionally inscribed “For Peggy and Bill Burden with Best Wishes from Apollo Eleven.”. NASA, July 20, 1969
This classic space photograph is signed by the crew of Apollo 11, the first manned mission to the Moon: Neil Armstrong (commander), Buzz Aldrin (lunar module pilot), and Michael Collins (command module pilot) and further inscribed to William A. M. and Peggy Burden. This famous Armstrong photograph of Aldrin, standing on the moon’s surface with the United States flag, is NASA AS11-40-5875.
(English) Autograph Letter Signed [to Henry Denny]. Down, Kent, June 1, 
VERY EARLY DARWIN INVESTIGATION OF THE RACES OF MAN. In 1834 Darwin heard that head lice vary among the races of man while on the voyage of the Beagle. In his Beagle zoological diary he wrote, “Mr Martial, a surgeon of an English Whaler assures me that the Lice of the Sandwich Islanders … if they strayed to the bodies of the English in 3 or 4 days died … If these facts were verified their interest would be great.— Man springing from one stock according his varieties having different species of parasites.— It leads one into many reflections.” Intrigued by the implications of this observation, Darwin began collecting specimens for further research.
Neil Armstrong on the Cancellation of the Moon Stamp On Board the Apollo XI CSM Returning From the MoonARMSTRONG ,NEIL
(English) Typed letter signed to Dr. Joseph F. Rorke.. Houston, NASA, 15 January 1970.
In this historic letter Armstrong details the history of the Apollo XI in-flight cancellation of the “First Man on the Moon” stamp and of the die famously carried to the moon by Armstrong, Aldrin, and Collins
(South.) Lalouette, Antoine Prudence (1777-1855)
(English) An important manuscript collection including 16 long, closely written letters written from Alabama. Alabama, New Orleans, Paris, and elsewhere, mainly 1821-1823
This tremendous manuscript collection documents in great detail a pioneering French settler’s ambitious struggles to establish a home in the new state of Alabama in the early 1820s.
(English) Scientific manuscript of a course of studies at Collège de la Trinité, Lyon. Lyon, 1660s
This fascinating 17th-century scientific manuscript documents the state of scientific knowledge and education in France in the years following Galileo’s trial and the Church’s prohibition of Copernican theory.
“I believe the high value of well-bred males is due to their transmitting their good qualities to a far greater number of offspring than can the female.”DARWIN, CHARLES
(English) Autograph Letter Signed to Lawson Tait. Down, 17 January 
CHARLES DARWIN ON SEXUALITY AND THE TRANSMISSION OF HEREDITARY CHARACTERISTICS.
EMERSON ,RALPH WALDO
(English) Autograph Letter Signed to Abby Dwight Woodbridge.. Concord, 6 July 1841
In this tremendous letter on his philosophy of the individual and on writing poetry, Emerson describes for a prospective contributor the workings of his fabled literary magazine, The Dial.