(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.
(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.
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
“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.
(English) The Life of Franklin Pierce. Boston: Ticknor, Reed and Fields, 1852
FIRST EDITION. AN ASSOCIATION COPY OF THE GREATEST INTEREST, inscribed and signed by the subject of the book, President-elect Franklin Pierce, lifelong friend of the author. Pierce has inscribed the book to the Ohio newspaper publisher Washington McLean: “For Washington McLean from Frank. Pierce Concord N.H. Feby. 5. 1853.”
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.
(English) Autograph letter signed “Freud” on cigars to an unidentified correspondent “Honored Sir and Dear Brother.”. Vienna, May 26, 1921
FREUD’S CIGARS. In this fine letter Sigmund Freud asks a friend visiting Holland to bring back his beloved Dutch cigars, writing in small part, “Although I could just as well rely on your taste, in case you get to The Hague and make the purchase there, I’ll give you the address Hagen Spinecka and the brand Soberanos (1400 [presumably a series of the Soberanos brand] 15 dozen). The enclosed 60 florin note is to cover this purchase.” In turn-of-the-century Vienna, the Austrian government maintained strict control over the tobacco industry, and Freud relied on friends to bring him the cigars he smoked endlessly.
FITZGERALD, F. SCOTT
(English) This Side of Paradise. New York: Scribner’s, 1920
FIRST EDITION, FIRST PRINTING. Fitzgerald’s first novel, one of only 3000 copies. Presentation copy inscribed on the title page: “For Kenneth Brightbill from F. Scott Fitzgerald April 30th, 1921.” Brightbill and Fitzgerald seem likely to have been classmates, perhaps at the Newman School in New Jersey. Fitzgerald inscribed several of his early books to Brightbill.
(English) Death of a Salesman. New York: Viking, 1949
FIRST EDITION. Presentation copy inscribed by Arthur Miller to William Targ and further signed by the original cast members, who have all signed on the list of cast members printed after the title page.