GEORGE WILHELM HEGE
IMMANUEL KANT (1724-1804).
EDUARD VON HARTMANN
JOHN STUART MILL
VOLTAIRE SIGNATURE.
GOTTFRIED von LEIBNIZ
Immanuel Kant's signature.
MARTIN BUBER (1878-1965).
MARTIN HEIDEGGER
KARL JASPERS (1883-1969).
MAIMONIDES (1135-1204).
Signature of Baruch Spinoza.
BENJAMIN FRANKLIN (1706-1790).
KARL WILHELM SCHEELE
ANDRE MARIE AMPERE
SOREN KIERKEGAARD
Signature of Emanuel Swedenborg.
ARTHUR SCHOPENHAUER
LEO TOLSTOY (1828-1910).
KARL MARX (1818-1883).
HENRI BERGSON (1859-1941).
ROBERT CHAMBERS (1802-1871).
RALPH WALDO EMERSON
JOHANN GOTTLIEB FICHTE
RENE DESCARTES (1596-1650).
THOMAS HOBBES (1588-1679).
BARUCH SPINOZA (1632-1677).
BERTRAND RUSSELL
SIR HUMPHRY DAVY (1778-1829).
MOSES MENDELSSOHN
JOHANN GOTTFRIED von HERDER
THOMAS PAINE (1737-1809).
FRIEDRICH W HLER (1800-1882).
GEORG CANTOR (1845-1918).
WILLIAM H. BRAGG (1862-1942).
MICHEL EUGENE CHEVREUL
THOMAS GRAHAM (1805-1869).
SIGMUND FREUD (1856-1939).
KARL FRIEDRICH GAUSS
THOMAS ROBERT MALTHUS
Benjamin Franklin
JOHN HERSCHEL (1792-1871).
FRIEDRICH W.J. von SCHELLING
GOTTHILF VON SCHUBERT
JEREMY BENTHAM (1748-1832).
HENRY DAVID THOREA
ERNST MACH (1838-1916).
CADWALLADER COLDEN
HENRY CAVENDISH (1731-1810).
SIR MARTIN FROBISHER
JONATHAN SWIFT (1667-1745).
DANIEL DEFOE (c1659-1731).
JAMES BOSWELL (1740-1795).
Samuel Taylor Coleridge
Robert Macnish
Michael Faraday
William Godwin
NOAH WEBSTER (1758-1843).
WILLIAM WORDSWORTH
LUDWIG van BEETHOVEN
SAMUEL GEORGE MORTON
THOMAS JEFFERSON (1743-1826).
MONROE'S AUTOGRAPH.
MAX PLANCK (1858-1947).
SVANTE AUGUST ARRHENIUS
DAVY CROCKETT SIGNATURE.
Signature of Charles Darwin.
Signature of Louis Pasteur.
GEORGE WASHINGTON
ARNAULD & NICOLE: LOGIC.
GEORG SIMON OHM (1787-1854).
JULES HENRI POINCARE
SIR WILLIAM RAMSAY
JOHN TYNDALL (1820-1893).
CHARLES LUTWIDGE DODGSON
LORD KELVIN (1824-1907).
J.H. HOFF (1852-1911).
EDWARD JENNER (1749-1823).
Signature of Blaise Pascal.
JOHN RUSKIN (1819-1900).
Henry Cavendish, British physical chemist
HERMAN MELVILLE (1819-1891).
CHARLOTTE BRONT
ROBERT BROWNING (1812-1889).
ELIZABETH BARRETT BROWNING
CHARLES DICKENS (1812-1870).
FRIEDRICH ENGELS
TOBIAS GEORGE SMOLLETT
MARIE CURIE (1867-1934).
VOLTAIRE (1694-1778).
MOZART: AUTOGRAPH.
MARIE ANTOINETTE (1755-1793).
JOHANN SCHLEGEL (1719-1749).
PHILLIS WHEATLEY
JOHN HANCOCK (1737-1793).
SAMUEL JOHNSON (1709-1784).
Signature of Elias Gottlob Haussmann.
IDA LAURA PFEIFFER
JOHN WESLEY POWELL
SIR CHARLES LYELL
THOMAS YOUNG (1773-1829).
SIR HUMPHRY DAVY
KARL MARX MEMBERSHIP.
PHILOSOPHICAL SOCIETY.
CHEVALIER DE LAMARCK
LEONARDO DA VINCI
CABEZA DE VACA (c1490-c1557).
MAX BORN (1882-1970).
JOHANNES KEPLER
HENRY KNOX (1750-1806).
BARON FRIEDRICH von STEUBEN
JOHN WITHERSPOON
ABIGAIL ADAMS (1744-1818).
JOHN D. ROCKEFELLER
George Berkeley.
Signature of Adolf Erik Nordenskiold
BARON CHRISTIAN von WOLFF
MARQUIS de CONDORCET
Henry Hallam
JEFFERSON: VARIOUS CARDS.
GEORG WILHELM HEGEL
GEORGE BANCROFT (1800-1891).
ERNEST RUTHERFORD
PRINCE KROPOTKIN (1842-1921).
JOHANN PESTALOZZI
JOSEPH PRIESTLEY (1733-1804).
EDWARD GIBBON (1737-1794).
ABRAHAM GOTTHELF KAESTNER
LEIBNITZ MS. DIAGRAM.
John Locke 1632 To 1704
Robert Brown, Scottish botanist
JOHN WAYNE (1907-1979).
CHARLES A. LINDBERGH
WALT DISNEY (1901-1966).
GEORGE BERNARD SHAW
FERDINAND MAGELLAN
NICOLAS DE MALEBRANCHE
GIOVANNI BATTISTA VICO
DENIS DIDEROT (1713-1784).
JOHN LOCKE (1632-1704).
JOHN HART (1711-1779).
GEOFFREY CHAUCER
Vincenzo Bellini.
ROBERT LOUIS STEVENSON
CLAUDE MONET (1840-1926).
EDGAR ALLAN POE (1809-1849).
WILLIAM SOMERSET MAUGHAM
MARCEL PROUST (1871-1922).
JOAQUIM MACHADO DE ASSIZ
HOWARD PYLE (1853-1911).
IVAN TURGENEV (1818-1883).
MARY W. SHELLEY (1797-1851).
AUGUST STRINDBERG
STEPHEN CRANE SIGNATURE.
CLEMENS SIGNATURE.
HANS CHRISTIAN ANDERSEN
ALEKSANDER P. BORODIN (1834-1887).
JOHANNES BRAHMS (1833-1897).
JOHN JACOB ASTOR (1763-1848).
NATHANIEL HAWTHORNE
FEDOR DOSTOEVSKI (1821-1881).
MAXIM GORKI (1868-1936).
JEAN PAUL GETTY (1892-1976).
HELEN ADAMS KELLER
HENRY WADSWORTH LONGFELLOW
SIR WALTER RALEIGH
3rd BARON RAYLEIGH
CARL GUSTAV JUNG
GEORGE BERKELEY (1685-1753).
LOUIS RIEL (1844-1885).
ABRAHAM LINCOLN: CHECK.
LINCOLN'S AUTOGRAPH.
ULYSSES S. GRANT (1822-1885).
GEORGE STEPHENSON
JACQUES CARTIER (1491-1557).
ALEXANDER GRAHAM BELL (1847-1922).
ANDREW CARNEGIE (1835-1919).