Beschreibung:

WELLS, William (1757-1817). An essay upon single vision with two eyes: together with experiments and observations on several other subjects in optics . London: T. Cadell, 1792. 8 o (250 x 125 mm). (Occasional very minor foxing). Contemporary quarter sprinkled calf, marbled boards (rebacked, worn). Provenance : Alexander Young (presentation copy inscribed by the author and with a few corrections in the author's hand). FIRST EDITION. Norman 2198. - William WELLS An essay on dew and several appearances connected with it . London: W. Calvert for Taylor and Hessey, 1814. 8 o (225 x 142 mm). (Some foxing to title page and endpapers). Contemporary quarter calf, gilt spine, UNCUT. Provenance : Richard Moulson (inscription); Halifax Literary and Philosophical Society's Library (bookplates). FIRST EDITION. Wells was awarded the Rumford Medal of the Royal Society for this essay, which marked an important step in the development of the science of ventilation. Garrison-Morton 1604; Norman 2199. -- WELLS. Two essays: one upon single vision with two eyes; the other on dew. A letter to the Right Hon. Lloyd, Lord Kenyon and an account of a female of the white race of mankind, part of whose skin resembles that of a negro; with some observations on the causes of the differences in colour and form between the white and negro races of men. With a memoir of his life written by himself . London: Thomas Davison for Archibald Constable (Edinburgh); and Longman and others (London), 1818. 8 o (213 x 134 mm). Later brown boards, green leather spine label. FIRST COLLECTED EDITION, INCLUDING THE FIRST STATEMENT OF THE THEORY OF NATURAL SELECTION. The work was largely unknown until it was resurrected in the 1860s, after the publication of Darwin's On the origin of species . Garrison-Morton 216.2; Norman 2200. (3)