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 Mean Positions of the Stars observed in the Zones at the Argentine National Observatory, with Introduction and Precession Tables, 2 vols., 4to, 879 pp., Buenos Aires, 1884, £2 10s.

HERSCHEL (Sir J. F. W.) Results of ASTRONOMICAL Observations made during the years 1834-38 at the Cape of Good Hope, being the completion of a telescopic survey of the whole surface of the visible heavens, with frontispiece and 8 plates, royal 4to, cloth, scarce, 1847, £2 2s.

LA TOUCHE (J. D.) Geology of Shropshire, with 823 engravings, 4to, cloth, 1884, 15s.

NASMYTH (James, C.E.) and James CARPENTER, F.R.A.S., The Moon: considered as a Planet, a World, and a Satellite, with 24 photographic plates of Lunar Objects, Phenomena, and Scenery, numerous woodcuts, 4to, cloth, 1874, very scarce, £4 4s.

PETERS (Dr. C. H. F.) Celestial Charts for the Equinox, 1860, made at the Litchfield Observatory, Hamilton College, New York (last comparison with the sky in 1882), 1st series, 20 maps, folio (22 inches by 16 inches), £3 3s.

PRICE (Bartholomew, F.R.S.) Treatise on Infinitesimal Calculus: Vol. I., Differential Calculus; Vol. II., Integral Calculus, Calculus of Variation, and Differential Equations; Vol. III., Statics and Dynamics of Material Particles, with 10 plates, 3 vols., 8vo, cloth, last edition, Oxford, 1857, 1865, and 1868, £1 17s. 6d.

SCHMIDT (Dr. J. F. Julius) Charte der Gebirge des Mondes nach einigen beobachtungen in den Jahren 1840-74, 25 sections of the Moon, each royal folio, in portfolio, with text, over 300 pp., 4to, boards, 1878, £2 12s.