HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 43, PICCADILLY, W. 509 



10177 KIRCHHOFF (Gustav Robert; f.r.s.) Gesammelte Abhandlungen ; with Jine steel 

 portrait and 2 plates (1 coloured), 8vo. hf. morocco neat, uncut, lOs 6d (p. M. 15 sewn) 



Leipzig, 1882 

 Containinp in a collected form the author's contributions to scientific journals, chiefly on electricity and magnetism, 

 anJ optics. The latter include his memorable papers on spectrum analysis. 



10178 Untersuchungen Uber das Sonnenspectrum und die Spectren der chemischen 



Elemente ; original edition, with 5 fine lithographic plates (4 folding), 2 vols. 4to. hoards 

 (VERY scarce), £1. l5 " Berlin, 1861-3 



10179 Dasselbe (I. Tell 3. und vermehrter Abdruck mit Vorwort) ; with 5 plates (4 folding), 



2 vols. 4to. boards, with auto, of Prof . N. Story -Maskelyne, F.R.S. , \bs ib., 1866-3 



a classic of the exact sciences, which first contains the complete statement of the principle on which spectrum- 

 analysis is based. 



10180 Researches on the Solar Spectrum, and the Spectra of the Chemical Elements, 



translated with the Author's Sanction from the Transactions of the Berlin Academy by [Sir] 

 Henry E. Roscoe [f.r.s.], with 3 lithographic plates (2 coloured), 4to. boards (scarce), 12* 6d 



Cambridge, 1862 

 A translation of the first part, the only one ever done into Englisli. 



' While spectnim analysis, as a terrestrial science, was due equally to Kirchhoff and Bunsen, its celestial applications 

 belong to Kirchhoff alone. KirchhofTs cxidanation of the Frauenhofer lines was epoch-making'.— P7-o/- ^^ Cajorl. 



10181 , und Robert Wilhelm v. BUNSEN, f.r.s. : Chemische Analyse durch Spectral- 



beobachtungen ; ivith woodcut, 8vo. (pp. 32), sewn, 2s Wien, o. J. 



10182 KIRKALDY (David) : Illustrations of his System of Mechanical Testing, as originated 

 and carried on by him, comprising a large Selection of Tabulated Results, shewing the Strength 

 and other Properties of Materials used in Construction, with Historical ^\iQtc\\, portrait, 25 plates, 

 and numerous woodcuts, 4to. cl., 18s 6d (p. £4. is nett) 1891 



Pp. 265-f02 contain a very interesting biographical sketch, including a lull account of the author's controversy with 

 the Steel Committee of the Institution of Civil Engineers, and the jealousy and opposition aroused by the Kirkaldy 

 system of mechanical testing, of which he was the originator. 



10183 [ ] Preliminary Experiments on the Mechanical and other Properties of Steel: 



Experiments on the Mechanical and other Properties of Steel, made at H.M. Dockyard, 

 Woolwich, urith 3 folding plates, and numerous diagrams — 2 vols, folio in 1, cl., 6* 1868-70 



10184 Results of an Experimental Enquiry into the Comparative Tensile Strength 



and other Properties of various Kinds of Wrought-Iron and Steel, with \Q folding plates, 8vo. 

 cl. {cover damaged, and name cut off title), 5s (p. 18s) Glasgow, 1862 



10185 Second Edition, with m folding plates, 8vo. cl., 6s 6d ibidem, 1863-6 



10186 Another Copy, with the plates linen-mounted, 8vo. hf. calf Is 



' An excellent digest of information on crystalline and fibrous iron is contained in Kirkaldy's [above] valuable work.' — 

 Dr. Percy, F.R.S. 



10187 • Results of an Experimental Enquiry into the Mechanical Properties of Steel of 



Different Degrees of Hardness, and under Various Conditions, manufactured by Christian 

 Aspelin, Westanfors and Fagersta Works, Sweden, with 4 folding plates, and woodcuts, 4to, cl. 

 (name cut out of title), 5s (p. 12s 6d) 1873 



10188 KIRKMAN (Marshall Monroe) The Science of Railways, Vols. I, III, V-VH, IX-X, 

 enlarged Ed., ivith 2>ortrait, plates, and numerous other illustrations, 7 vols. or. 8vo. hf. red roan, 

 los New York, 1903 



Contents:— I. Railway Equiyjment : III. Financing, Constructing and Maintaining: V. Passenger, Baggage, Express 

 and Mail Service : VI. Freight Business and Affairs : VII. Disbursements of Railways : IX. Fiscal Affairs, Collection of 

 Revenue : X. General Fiscal and other Affairs. 



101S9 KITCHINER (William, m.d. ; gastronomist) The Economy of the Eyes : plain Rules to judge 

 exactly when, and what Spectacles are best calculated for the Eyes; with Observations on 

 Opera Glasses and Theatres ; and Account of the Pancratic Magnifier for Double Stars, and 

 Day Telescopes, icith folding front., and plate of pancratic draw-tube, fcap. 8vo. hoards, uncut 

 {scarce), 8s 6d 1824 



Interesting for giving an account of the author's invention of the pancratic draw-tube, which is still in use with 

 terrestrial telescopes. 



10190 KLATT (Virg-il), und Philipp LENARD: Ueber die Phosphorescenzen des Kupfers, 

 WiSMUTHS und Mangans in deu Erdalkalisulfiden ; with plate, 8vo. (pp. 18), sewn. Is 



Leipzig, 1889 

 KLEIN (Felix ; f.r.s., Univ. Gottingen) Conferences sur les Math6matiques— i?. Halphen, 

 No. 8841, ante. 



10191 Ueber NoRMiRUNG der linearen Differentialgleichungen zweiter Ordnung, 



roy. 8vo. (pp. 9), sewn, Is {Leipzig, 1890] 



10192 Ueber Realitatsverhaltnisse bei der einem beliebigen Geschlechte zugehorigen 



Normalcurve der <p, roy. 8vo. (pp. 29), sewn. Is 6rf [ibidem, 1892] 



10193 Zur Theorie der Abel'schen Functionen, 2 parts roy. 8vo. (pp. 18), sewn. Is 



[Gottingen, 1889] 



10194 Zur Theorie der hyperelliptischen Functionen beliebig vieler Argumente, roy. 



8vo. (pp. 7), sewn. Is [ibidem, 1887] 



10195 , und Arnold SOMMERFELD : Uber die Theorie des Kreisels [Heft I und II] ; 



with 65 diagrams, 2 vols. roy. 8vo. in \,cl., with bookplate of Prof. Lloyd Tanner, F.R.S., 10s Qd 

 (p. M. 15.60 unbound) Leipzig, 1897-8 



10196 KLEIN (Kaxl; Univ. Berlin), und C. TRECHMANN : Krystallographische Unter- 

 suchung amidartiger Derivate des Hydroxylamins ; with plate ^ T^%t 8\o. (pp. 35), uwn, 

 2s ' [ibidem, 1877] 



