“perhaps the greatest intellectual stride that it has ever been granted to any man to make”— Einstein on Newton’s PrincipiaNEWTON ,ISAAC
Philosophiae Naturalis Principia Mathematica. London: for the Royal Society by Joseph Streater, 1687
First edition of Isaac Newton’s Principia, “generally described as the greatest work in the history of science” (PMM). This is an excellent, entirely unrestored copy of the first state with the preferred two-line imprint.
A Collection of nearly 500 volumes and more than 250 letters, prints, photographs, memoranda, ephemera, and other objects.. Various places, 1880s-1940s
Carte-de-visite Photograph Album. Down, Kent, 1871-1879
An intimate photographic memento of Charles Darwin and his family. This extremely rare Darwin family photograph album contains photographs of Charles Darwin (1809-1882) and his wife Emma Darwin (1808-1896).
VON BRAUN, WERNHER
A superb archive of original signed drawings and diagrams of space vehicles and flight, together with related material.. Huntsville, Alabama, 1952-53
Wernher von Braun prepared these original drawings of rockets and spaceships for the artists who illustrated his epochal series “Man Will Conquer Space Soon.” This publication played a central role in inspiring a generation of American rocket scientists and convincing the American public of the possibility of space exploration.
Opticks: or a Treatise of the Reflections, Refractions, Inflexions and Colours of Light. Also two treatises of the species and magnitude of curvilinear figures.. London: Printed for Sam Smith and Benj. Walford, Printers to the Royal Society, 1704
First edition, first issue of a landmark in the history of physics. In the Opticks Newton presents his theories and experimental findings concerning the nature of light and color. The book’s wide-ranging discoveries and innovations include a description of the composition of white light as a compound of primary colors (previously white was considered to be a pure and simple color of which other colors were variants), the color spectrum, the degrees of refraction of different colors, the first- ever color circle, the first workable theory of the rainbow, and a discussion of the invention of the refracting telescope.
WATSON, JAMES D. & FRANCIS CRICK
“Molecular structure of nucleic acids. A structure of deoxyribose nucleic acid.” Offprint from: Nature Vol. 171 (April 25, 1953). London, 1953
FIRST EDITION, THE RARE OFFPRINT. Signed by Watson and Crick. This volume is also inscribed and signed by Maurice Wilkins and Alec R. Stokes, co-authors of the second paper with H R. Wilson. Wilkins shared the 1962 Nobel Prize in Medicine with Watson and Crick.
WATSON ,JAMES and FRANCIS CRICK
“Molecular structure of nucleic acids. A structure of deoxyribose nucleic acid.”. Offprint from: Nature Vol. 171 (April 25, 1953) , April 25, 1953
FIRST EDITION, THE RARE OFFPRINT. Signed by Watson and Crick on the first page and thus eminently suited for exhibition.
two items: $75,000
VON NEUMANN ,JOHN, ET AL
Ergebnisse eines mathematischen Kolloquiums, unter Mitwirkung Kurt Gödel und George Nobeling. Herausgegen von Kurt Menger. Heft 1-8.. Leipzig & Berlin: B. G. Teubner and F. Deuticke, [1931-1937].
A rare complete run of first editions of the proceedings of the celebrated Vienna Colloquium.
Iconic signed Darwin photograph “I like this photograph much better than any other which has been taken of me.”(DARWIN, CHARLES.) CAMERON, JULIA MARGARET
Portrait of Charles Darwin, signed by Darwin and by Cameron. Cameron, 
THE ICONIC PORTRAIT OF CHARLES DARWIN, boldly signed by Charles Darwin and by Julia Margaret Cameron.
Experiments and Observations in Soaring Flight. Offprint from: Journal of the Western Society of Engineers 8 [misprinted “III” on front wrapper], no. 4 (August, 1903). [Chicago], 
FIRST EDITION, offprint issue. Presentation copy with the stamp of the Wrights’ advisor, mentor, and chief promoter, aviation pioneer Octave Chanute. Chanute was the most important figure in aviation from 1890 to 1910