[ADAM SMITH] ADAM SMITH'S COPY OF HELVETIUS'S MOST IMPORTANT WORK. HELVETIUS, CLAUDE ADRIEN. 1715-1771. De L'homme. London [i.e. The Hague]: Chez ...

[ALCHEMY] THE GREATEST ILLUSTRATED WORK IN ALCHEMY. MAIER, MICHAEL. 1568–1622. Atalanta fugiens hoc est, Emblemata nova de secretis naturae chymic...

[ALCHEMY] ROSICRUCIAN ALCHEMICAL MANUSCRIPT. MYSTERIUM MAGNUM. Illustrated alchemical manuscript of Rosicrucian origin on the 'Mysterium Magnum St...

BOETHIUS, ANICIUS MANLIUS TORQUATUS SEVERINUS. C. 480-524. De consolatione philosophiae. [With commentary ascribed to Thomas Aquinas.] Nuremberg:...

DARWIN'S FIRST BOOK. DARWIN, CHARLES. 1809-1882. Journal of Researches into the Geology and Natural History of the various countries visited by H....

DE BROGLIE ON THE NATURE OF MATTER IN THE QUANTUM VIEW. DE BROGLIE, LOUIS. 1892-1987. Autograph Manuscript Signed ('M. de Broglie') on the problem...

[DESCARTES] JOHN EVELYN'S COPY OF AN IMPORTANT WORK IN THE SPREAD OF CARTESIAN PHILOSOPHY. [DESCARTES, RENE.] LE GRAND, ANTOINE. An Entire Body of...

[EINSTEIN] AUTHOR'S PRESENTATION OFFPRINT ISSUE OF EINSTEIN'S PROOF OF GENERAL RELATIVITY. EINSTEIN, ALBERT. 1879-1955. 'Erklärung der Perihelbew...

[EINSTEIN] INSCRIBED COPY OF THE DEFINITIVE EXPOSITION OF RELATIVITY. EINSTEIN, ALBERT. 1879-1955. The Meaning of Relativity. Princeton: Princeto...

HERTZ ON HIS MENTOR HERMANN VON HELMHOLTZ. HERTZ, HEINRICH. 1857-1894. Autograph Manuscript, a heavily annotated and corrected draft of his 1891 t...

KABBALAH: SEFER YETZIRAH, OR THE 'BOOK OF FORMATIONS.' POSTEL, GUILLAUME. 1510-1581. Abrahami Patriarchae liber Iezirah, sive Formationis mundi. P...

[LAPLACE] ON MALUS'S DOUBLE REFRACTION EXPERIMENTS. LAPLACE, PIERRE SIMON. 1749-1821; HAÜY, RENÉ JUST. 1743-1822. Autograph Manuscript Signed ('La...

[MAIMONIDES] FIRST LATIN EDITION OF GUIDE FOR THE PERPLEXED. MAIMONIDES (MOSES BEN MAIMON). 1138-1204. Dux seu director dubitantium aut perplexoru...

[MATHEMATICS] FIRST BOOK IN ENGLISH ON ALGEBRA. RECORDE, ROBERT. c.1510-1558. Whetstone of Witte. London: John Kingston, 1557. 4to (185 x 132 mm)...

[MATHEMATICS] UNIQUE 18TH-CENTURY ILLUSTRATED MATHEMATICAL MANUSCRIPT ON CONIC SECTIONS. STAMPA, JOSEPHO [GIUSEPPE] MARIA. 1666-1734. Autograph Ma...

MAXWELL CONCEIVES THE MODERN WORLD. MAXWELL, JAMES CLERK. 1831-1879. Treatise on Electricity and Magnetism. Oxford: Clarendon Press, 1873. 2 volu...

[NEWTON] RARE PRESENTATION COPY OF NEWTON'S PRINCIPIA. NEWTON, ISAAC. 1642-1727. Philosophiae naturalis principia mathematica. London: William and...

NEWTON'S ALCHEMY: A 'KEY' TO NEWTON'S SCIENCE. NEWTON, ISAAC. 1642-1727. Autograph alchemical manuscript, 'A Key to Snyders,' being Newton's 'key'...

[OCCULT SCIENCE] 'THE MAGICAL CALENDAR OF TYCHO BRAHE': RARE HERMETIC BROADSIDE. GROSSCHEDEL, JOHANN BAPTISTE; DE BRY, JOHANN THEODOR, printer; ME...

PLANCK SOLVES A COMPLEX PROBLEM FOR HIS FORMER STUDENT. PLANCK, MAX. 1858-1947. Autograph Letter Signed ('M. Planck') to Dr. Ludwik Silberstein so...

[PLATO] EXCEPTIONALLY RARE FIRST PRINTING OF THE TIMAEUS. PLATO. FICINO, MARCELLO, Translator. Timaeus [WITH:] Critias. Florence: [nuns of San Jac...

SCHRODINGER AT THE DAWN OF WAVE MECHANICS. SCHRÖDINGER, ERWIN. 1887-1961. Typed Letter Signed ('E. Schrödinger') to Wilhelm Wien ('Hochverehrter ...

[SHANNON] THE FOUNDING OF INFORMATION THEORY. SHANNON, CLAUDE E. 1916-2001. 'A Mathematical Theory of Communication.' Offprint from: Bell System T...

TESLA ON ELECTRICITY. TESLA, NIKOLA. 1856-1943. Typed Letter Signed ('N. Tesla') to N.S. Amstutz advising on his experiments with induction coils,...