AUNT IDA’S Walks and Talks; a Story Book for Children. By a LADY. Woodcuts. 16mo. 5_s._ AUSTIN’S (JOHN) LECTURES ON JURISPRUDENCE; or, the Philosophy of Positive Law. _New and Cheaper Edition._ 2 Vols. 8vo. AUSTIN’S (SARAH) Fragments from German Prose Writers. With Biographical Notes. Post 8vo. 10_s._ ADMIRALTY PUBLICATIONS; Issued by direction of the Lords Commissioners of the Admiralty:— A MANUAL OF SCIENTIFIC ENQUIRY, for the Use of Travellers. Edited by Sir JOHN F. HERSCHEL, and Rev. ROBERT MAIN, M.A. _Third Edition._ Woodcuts. Post 8vo. 9_s._ AIRY’S ASTRONOMICAL OBSERVATIONS MADE AT GREENWICH. 1836 to 1847. Royal 4to. 50_s._ each. AIRY’S ASTRONOMICAL RESULTS. 1848 to 1858. 4to. 8_s._ each. AIRY’S APPENDICES TO THE ASTRONOMICAL OBSERVATIONS. 1836.—I. Bessel’s Refraction Tables. } II. Tables for converting Errors of R.A. and N.P.D. } 8_s._ into Errors of Longitude and Ecliptic P.D. } 1837.—I. Logarithms of Sines and Cosines to every Ten } Seconds of Time. } _8s._ II. Table for converting Sidereal into Mean Solar Time.} 1842.—Catalogue of 1439 Stars. 8_s._ 1845.—Longitude of Valentia. 8_s._ 1847.—Twelve Years’ Catalogue of Stars. 14_s._ 1851.—Maskelyne’s Ledger of Stars. 6_s._ 1852.—I. Description of the Transit Circle. 5_s._ II. Regulations of the Royal Observatory. 2_s._ 1853.—Bessel’s Refraction Tables. 3_s._ 1854.—I. Description of the Zenith Tube. 3_s._ II. Six Years’ Catalogue of Stars. 10_s._ 1856.—Description of the Galvanic Apparatus at Greenwich Observatory. 8_s._ 1862.—I. Seven Years’ Catalogue of Stars. 10_s._ II. Plan of the Building and Ground of the Royal } Observatory, Greenwich. } 3_s._ III. Longitude of Valentia. } AIRY’S MAGNETICAL AND METEOROLOGICAL OBSERVATIONS. 1840 to 1847. Royal 4to. 50_s._ each. AIRY’S ASTRONOMICAL, MAGNETICAL, AND METEOROLOGICAL OBSERVATIONS, 1848 to 1864. Royal 4to. 50_s._ each. AIRY’S ASTRONOMICAL RESULTS. 1848 to 1864. 4to. AIRY’S MAGNETICAL AND METEOROLOGICAL RESULTS. 1848 to 1864. 4to. 8_s._ each. AIRY’S REDUCTION OF THE OBSERVATIONS OF PLANETS. 1750 to 1830. Royal 4to. 50_s._ AIRY’S REDUCTION OF LUNAR OBSERVATIONS. 1750 to 1830. 2 Vols. Royal 4to. 50_s._ each. AIRY’S REDUCTION OF LUNAR OBSERVATIONS. 1831 to 1851. 4to. 20_s._ BERNOULLI’S SEXCENTENARY TABLE. _London_, 1779. 4to. BESSEL’S AUXILIARY TABLES FOR HIS METHOD OF CLEARING LUNAR DISTANCES. 8vo. BESSEL’S FUNDAMENTA ASTRONOMIÆ: _Regiomontii_, 1818. Folio. 60_s._ BIRD’S METHOD OF CONSTRUCTING MURAL QUADRANTS. _London_, 1768. 4to. 2_s._ 6_d._ BIRD’S METHOD OF DIVIDING ASTRONOMICAL INSTRUMENTS. _London_, 1767. 4to. 2_s._ 6_d._ COOK, KING, AND BAYLY’S ASTRONOMICAL OBSERVATIONS. _London_, 1782. 4to. 21_s._