THE ORIGINS OF ELECTROMAGNETISM. AMPÈRE’S FIRST DISCUSSION OF THE RELATIONSHIP BETWEEN ELECTRIC CURRENT-FLOW AND MAGNETISM. More about <b><p style="color:SteelBlue;">“Mémoire … De l’Action mutuelle de...

EXTREMELY RARE FIRST EDITION IN ORIGINAL WRAPPERS of Bergman’s study of chemical affinities, including a large fold-out table, “the finest achievement in the tradition of affinity tables,” and a major predecessor of the periodic table. More about Disquisitio de Attractionibus Electivis [Dissertation of Elective Attractions

FIRST EDITIONS of two critical papers in developing our understanding of the atom: 1) all three parts of Bohr’s landmark work marking the definitive break from using classical physics at the atomic level, often cited as the foundation of our modern understanding of the atom; 2) both parts of Moseley's..... More about On the Constitution of Atoms and Molecules (Bohr). WITH: The High-Frequency Spectra of the...

FIRST EDITION IN SCARCE ORIGINAL WRAPPERS OF CLAUSIUS’ INTRODUCTION OF THE TERM ‘ENTROPY’ AND THE CULMINATION OF HIS WORK ON THE SECOND LAW OF THERMODYNAMICS; PRECEDES THE PUBLICATION IN ANNALEN DER PHYSIK. More about Ueber verschiedene für die Anwendung bequeme Formen der Hauptgleichungen der mechanischen...

FIRST EDITION, FIRST ISSUE IN ORIGINAL BOARDS of Dalton’s first book; one of the foundational works in meteorology. More about Meteorological Observations and Essays

FIRST EDITION of De Chancourtois’s presentation of his “telluric screw,” the first periodic representation of the elements; precedes Mendeleev’s table by seven years. More about Mémoire sur un classement naturel des corps simples ou radicaux appelé vis tellurique. WITH:...

OVER 100 PHOTOGRAPHS (with some duplicates) from the archives of the Wide World Photos (later the Associated Press) documenting Einstein’s life. Taken together, the collection – photographs with individual explanatory captions – serves as a biography in pictures through the eyes of the press and is a valuable primary source..... More about Archive of Photographs

EINSTEIN OFFERS STRONG AND PRESCIENT WORDS OF ENCOURAGEMENT TO THE LEADER OF THE NAACP IN THE FIGHT AGAINST RACIAL SEGREGATION AND DISCRIMINATION IN THE UNITED STATES. More about Autograph Letter Signed [ALS] Denouncing Racial Segregation

AN IMPORTANT SIGNED LETTER (in English) by Einstein, revealing his reservations of associating with communism even in the fight against fascism. More about Typed Letter Signed

THE BIRTH OF GENERAL RELATIVITY: FIRST PRINTING IN RARE ORIGINAL WRAPPERS OF ONE ONE EINSTEIN’S MOST IMPORTANT PAPERS; containing the beginning of general relativity, the derivations of the equivalence principle, gravitational redshift, and the gravitational bending of light. More about Über das Relativitätsprinzip und die aus demselben gezogenen Folgerungen [On the Relativity...

FIRST EDITION IN ORIGINAL WRAPPERS of the introduction of the Einstein-de Sitter cosmological model, the foundation for relativistic cosmology for most of the twentieth century. More about On the relation between the expansion and the mean density of the universe

STUNNING LARGE GELATIN SILVER LIMITED EDITION PHOTOGRAPH; one of the most iconic images of the 20th century. One of only 450 in the edition. More about Photograph