HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 545 



10951 LOCKYER (Sir Joseph Norman, f.r.s.) The Chemistry of the Sun, with 134 illmtrations, 

 8vo. cl. {o. p.), Is (p. Us) 1887 



This work develops the author's tlieory of sun-spots, first communicated to the Royal Society in 1SS6. 



10952 Contributions to Solar Physics: a Popular Account, with special Reference to 



Spectroscopic Researches, with 7 plates (3 coloured), and 175 woodcuts, thick Svo. cl. extra, 

 t.e.g.{o.p.),HsQd(^.£\.nsQd) 1874 



Sir Norman Lockyer was the first to apply spectroscopy to the study of the sun's surface. 



The above work includes his papers on solar physics contributed to the ' Philosophical Transactions ' and to the French 

 Academy of Scieuces, as well as lectures and contributions to various scientific periodicals, with original chapters, notes, 

 appendixes, and index. 



10953 Elementary Lessons in Astronomy, first edition, with coloured frontispiece, 



15 plates, and 78 woodcuts, Timo. cl., 2* (p. 5* 6rf) 1868 



10954 New Edition [enlarged], toith coloured front. ^ 16 plates, and 90 woodcuts, 12mo. cl., 



2s6d{^. 5s 6d) 1889 



10955 Inorganic Evolution as studied by Spectrum Analysis, with 43 illustrations, 8vo. 



cl., 2s 6d (p. 4s nett) 1900 



' Containing an account of my most recent enquiries into the chemistry of the stars.'— Pre/a/;e. 



10953 The Meteoritic Hypothesis : the Results of a Spectroscopic Inquiry into the Origin 



of Cosmical Systems, with 7 plates, and 101 woodcuts, Svo. cl., \0s (p. 17* nett) 1890 



This important work contains all the author's investigations on the subject, and includes his proposition that 'all 

 self-luminous bodies in the celestial space are composed either of swarms of meteorites, or of masses of meteoric vapour 

 produced by heat.' 



10957 Recent Researches in Solar Chemistry, 8vo. (pp. 16), sewn, 26 1878 



10958 The SPECTROSCOPE and its APPLICATIONS, with coloured frontispiece, and 60 woodcuts, 



post 8vo. cl. {scarce), 4s 1873 



10959 Stargazing : I^ast and Present, expanded from Shorthand Notes of a Course of Royal 



Institution Lectures, with the Assistance of G. A. Seabroke, F.R.A.S., with frontispiece and 217 

 woodcuts, many from old prints, Svo. cl., uncut, t. e. g. (o. p.), 10s Qd (p. £1. \s) 1878 



Including a valuable historical account of the ' pre-telescoplc age ', and of the invention of the telescope ; also accounts 

 of ' Time and Space Measures ', and ' Modern Meridional Observations '. 



10960 Studies in Spectrum Analysis, with 8 coloured plates, and 51 woodcuts, post Svo. cl., 



3* (p. 6* Qd) 1878, '83, or '94 



1 0961 , and F. E. BAXANDALL : The Spectrum of y Cygni, with folding plate, 4to. (pp. 18), 



boards, 2s 6d 1903 



10962 , and Arthur SCHUSTER, f.r.s. : Report on the Total Solar Eclipse of April 6, 



1875, with 6 plates, roy. 4to. (pp. 16), sewn, Ss Qd 1878 



10963 LODG-E (Alfred) Mensuration for Senior Students, with diagrams, cr. 8vo. cl., 2s 6d 

 (p. 4* 6d) 1895 



10964 On Products and Quotients of Concrete Quantities, Svo. (pp. 8), sewn. Is 1888 



10965 LODGE (Sir Oliver Joseph, f.r.s.) Easy Mathematics, chietiy Arithmetic, containing 

 a Summary of most Things in Elementary Mathematics useful to be known, with diagrams, cr. 

 Svo. cl., 2s 6d (p. 4* 6d) 1905 



10966 Elementary Mechanics, including Hydrostatics and Pneumatics ; new Edition, 



completely revised by the Author, Alfred and Charles S. Lodge, with 107 illustrations, cr. 

 Svo. 2s 6d (p. 4s 6d) 1904 



10967 Man and the Universe : a Study of the Influence of the Advance in Scientific 



Knowledge on our Understanding of Christianity, Svo. cl., 4s 6d (p. 7s 6d nett) [1908] 



10968 Modern Views on Electricity, with 55 illustrations, cr. Svo. cl., with author's 



signature, and auto, of F. J. Jervis-Smith, pr., F.R.S., 2s 6fl? (p. 6s 6rf) 1889 



10969 [Second Edition, enlarged, and with Chapter on Recent Progress], with 67 illustrations, 



cr. Svo., cl., 3s (p. 6s 6c?) 1892 



10970 Modern Views on Matter (Romanes Lecture) , Svo. sewn. Is Clarendon Press, Oxford, 1903 



10971 Signalling across Space without Wires ; the Work of Hertz and his Successors ; 



2nd enlarged Edition, with steel portrait of Hertz, and 32 ivoodcuts, Svo. cl., 2s Qd [1898] 



10972 Third [last] Edition, with additional Remarks on the Application to Telegraphy, 



and Later Developments, 67 illustrations, Svo. cl., 3s 6^/ (p. 5s nett) [1900] 



The Later Developments now include the Application to Party Politics. 



10973 The Work of Hertz and some of his Successors, with steel portrait, and diagrams, 



8\o.cl.{o.p.),2sed [1894] 



10974 LOEFFLER (Friedrich), Georg OESTEN, und R. SENDTNER : Wasserversorgung, 

 Wasseruntersuchung Hnd Wasserbeurteilung, mit Beitragen von Th. Weyl ; with 72 

 illustrations, roy. Svo. buckram, 4s (p. M. 9 sewn) Jena, 1896 



10975 LOESCH (M.) Bestimmung der Intensitat der Schwerkraft auf 20 Stationen an der 

 westafrikanischen Kiiste von Rio del Rey (KamerunGebiet) bis Kapstadt ; ivith 2 plates, 4to. 

 (pp. 50), sewn, 3s Qd Berlin, 1902 



10976 LOEWE (Ferdinand), und Georg MEYER: Weichen und Kreuzungen. Drehscheiben 

 und ScHiEBEBiJiiNEN. (Der Eisenbahnbau. HI. Abteilung) ; ivith folding plate, and 166 other 

 illustrations, large impl. Svo. sewn, 4s (p. M. 8) Leipzig, 1898 



10977 LOFFLER (Alexander) Uber die Methode, die grossten und kleinsten Werthe umbe- 

 stimmtj:r Integralformeln zu finden; with folding plate, roy. Svo. (pp. 30), sewn. Is 6s 



Wien, 1859 



