GRAY, ASA, A COLLECTION OF 15 VOLUMES, 1

HAECKEL, A COLLECTION OF WORKS (13 VOL.)

HOOKER, AUTOGRAPH LETTER SIGNED, TO JOHN

HOOKER, A CENTURY OF INDIAN ORCHIDS, 189

HUMBOLDT, PERSONAL NARRATIVE OF TRAVELS

HUXLEY, EVIDENCE AS TO MAN'S PLACE IN NA

HUXLEY, WORKS, [C.1893-1894] (9 VOL.)

HUXLEY, A COLLECTION OF AMERICAN EDITION

HUXLEY, A COLLECTION OF 15 VOLUMES WITH

HUXLEY, TWO AUTOGRAPH LETTERS SIGNED, TO

KINGSLEY, TWO EDITIONS OF 'THE WATER BAB

KRAUSE--DARWIN, ERASMUS DARWIN, 1879 (1

LAMARCK, HISTOIRE NATURELLE DES ANIMAUX

LAMARCK, SYSTÈME ANALYTIQUE DES CONNAISS

LARDNER, THE MUSEUM OF SCIENCE AND ART,