ROOSEVELT ON LINCOLN: IMPASSIONED LETTER BY THEODORE ROOSEVELT DEFINING THE QUALITIES HE ADMIRES IN A POLITICIAN, USING HIS HERO ABRAHAM LINCOLN AS AN EXAMPLE. More

FIRST EDITION of the landmark paper marking the birth of recombinant DNA technology. Paul Berg was awarded half of the 1980 Nobel Prize in Chemistry "for his fundamental studies of the biochemistry of nucleic acids, with particular regard to recombinant-DNA." More

ADA LOVELACE’S PERSONAL ANNOTATED COPY OF CHARLES BABBAGE’S FIRST SIGNIFICANT PUBLICATION. A MAJOR MATHEMATICAL TEXT IMPORTANT FOR HER INTELLECTUAL DEVELOPMENT. 

WITH AT LEAST 35 INK ANNOTATIONS IN LOVELACE’S HAND – THE MAJORITY CORRECTIONS TO MATHEMATICAL EQUATIONS – AND AT LEAST 18 PENCIL ANNOTATIONS IN THE HAND OF HER TUTOR..... More

BEAUTIFUL SIGNED AND DATED PHOTOGRAPH OF THEODORE ROOSEVELT AT HIS DESK IN THE WHITE HOUSE, WITH EXCEPTIONALLY LARGE ROOSEVELT SIGNATURE. More

FIRST EDITION, FIRST PRINTING, IN ORIGINAL WRAPPERS of Einstein’s paper outlining a thought experiment to suggest that the uncertainty principle requires the acknowledgement of an indeterminate past. More

ONE OF THE MOST CELEBRATED IMAGES OF EINSTEIN, SIGNED BY MASTER PHOTOGRAPHER, YOUSUF KARSH. More

FIRST EDITION OF BERNOULLI'S MASTERPIECE, THE FOUNDATIONAL WORK FOR HYDRODYNAMICS (A TERM BERNOULLI INVENTED). More

FIRST EDITION OF BERNOULLI'S FOUNDATIONAL WORK ON PROBABILITY THEORY. PMM 179. More

THE RARE FIRST EDITION OF “THE THREEPENNY OPERA,” A CLASSIC OF THE MODERN STAGE, ALONG WITH THE BOOKLET OF SONGS FROM THE PLAY THAT WAS PUBLISHED TO MARK ITS HUNDREDTH PERFORMANCE; BOTH ITEMS IN FINE CONDITION IN THE ORIGINAL PRINTED WRAPPERS, AND BOTH WITH THE OWNERSHIP INSCRIPTION OF CHARLOTTE GROTE-HASELBALG..... More

AN UNUSUALLY LARGE LEAF FROM A LATE 15TH-CENTURY FRENCH BOOK OF HOURS WITH A MINIATURE OF THE CORONATION OF THE VIRGIN WITH SUPERB COLOR AND IN PARTICULARLY FINE CONDITION. More

FIRST EDITION OF SANDER'S CLASSIC: A REMARKABLE COPY IN EXTREMELY RARE DUST JACKET AND SLIPCASE. More

FIRST LATIN EDITION — PREPARED FOR DISTRIBUTION IN CONTINENTAL EUROPE — OF THE PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY, THE WORLD’S FIRST SCIENTIFIC JOURNAL AND A KEY VEHICLE FOR THE PROMOTION OF EXPERIMENTAL SCIENCE AND THE DISSEMINATION OF SCIENTIFIC DISCOVERIES. EXTREMELY RARE COMPLETE SET IN SIX VOLUMES. More

A LANDMARK IN COMPUTER SCIENCE: FIRST EDITION OF JEVONS’S PRESENTATION AND EXPLANATION OF HIS “LOGICAL PIANO”, THE FIRST MACHINE TO SOLVE A MATHEMATICAL PROBLEM AT SUPERHUMAN SPEED. More