HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 37, PICCADILLY, W. 117 



2318 KNIGHT (William, Prof. Nat. Phil., Aberdeen) FACTS and OBSERVATIONS towards a NEW 

 THEORY of the EARTH, 8vo. boards, uncut, (\s Edin., 1818 



2319 ANOTHER COPY, calf gilt, with author's inscr. to Lord Gray, Is Gd 



Chiefly of geological and inineralogieal interest. 



2320 KOBEL (Jacob) ASTROLABII DECLARATIO, ejusdein Usus mire jucundus, non modo Astrologis, 

 Medicis, Geographic, etc. utilis ac necessarius : veriim etiam Mechanicis quibusdam Opificibus non 

 parura commodus ; facilioribus Formulis nuper aucta, longeque evidentior edita ; accessit ISAGO- 

 GON in ASTROLOGIAM JUDICIARIAM ; with numerous woodcuts, 16mo. (pp. Co) seivn (rare], 10s Gd 



Colonice, 1594 

 Containing at end a chapter on mathematical instruments and their use. 



2321 KOBOLD (Hermann, Kiel Sternwarte) Der BAU des FIXSTERNSYSTEMS, mit besonderer Beriick- 

 sichtigung der PHOTOMETRISCHEN RESULTATE ; with 3 folding plates and 19 smaller illustrations, 

 8vo. sewn, 4s Gd (sells M. 6.50. nett) Braunschweig, 1906 



2322 KOHLRAUSCH (Friedrich) INTRODUCTION to PHYSICAL MEASUREMENTS, with Appendixes 

 on Absoluts Electrical Measurements, etc., trans, by THOMAS HuTCHiNSON WALLER and HENRY 

 RICHARDSON PROCTER, 8vo. cl., 3s (p. 12s) 1873 



23-23 KOLBE (Hermann) SHORT TEXT-BOOK of INORGANIC CHEMISTRY, trans, and edited by T. S. 



HUMPIDGE, with coloured spectrum-table, and cuts, post 8vo. cl., 2s (p. 7s Gd) 1884 



2321 KONia (Josef, Munster) CHEMISCHE ZUSAMMENSETZUNG der MENSCHLICHEN NAHRUNGS- 



und GENUSSMITTEL, nach vorhandenen Aualysen mit Angabe der Quelleu zusarnmengestellt, mit 



e. Einleitung tiber die Erniihrungslehre, 3. sehr vermehrte Aufl. ; illustrated, sq. roy. 8vo. (pp. 



1189), cl., 8s Gd (p. M. 25.) Berlin, 1889 



2325 KONTGSBERGER (Leo) VORLESUNGEN iiber die THEORIE der ELLIPTISCHEN FUNCTIONED 

 mit Einleitung in die ALLGEMEINE FUNCTIONENLEHRE ; with 62 woodcuts, 2 vols. 8vo. in 1, hf. 

 bound, 10s Gd (p. M. 21.60. unbound) Leipzig, 1874 



2326 KOOL (J. A.), en P. J. SIEDEN'BTJRGh De TRANSPORTKABEL : ONDERZOEK naar de 

 PROEFLIJN bij BRIGHTON ; with 12 folding plates, roy. 8vo. sewn, 3s Gd Rotterdam, 1871 



A report on the working of the Brighton ' Wire Tramway ', and on overhead cable transport in general. 



2327 KOPP (Hermann) GESCHICHTE der CHEMIE ; with 4 portraits, 4 vols. 8vo. sewn (VERY SCARCE), 

 3. 3s Braunschweig, 1843-7 



' Distinguished by its comprehensiveness and thoroughness. He possesses in a remarkable degree the gift of sym- 

 pathetically tracing out the development of important ideas and hypotheses.' Pro/. E. v. Meyer. 



2328 HORN (Arthur, Univ. Munich) ELEKTRISCHE FERNPHOTOGRAPIIIE und AHNLICIIES, 2. 

 Auflage; with plate and 21 woodcuts, post Svo, seivn, 2s Leipzig, 1907 



The best account hitherto published of telautograph y (telegraphic photography), including an historical account, and a 

 description of the various methods. 



2329 KORTEWEQ- (D. J., Univ. Amsterdam) ALGEMEENE THEORIE der PONDEROMOTORISCHE 

 KRACHTEN, met Opmerkingen door J. D. v. d. WAALS, 4to. (pp. 68), hf. leather, 4s 



Amsterdam, 1879 



An elaboration of Ampere's ' Theorie mathematique des phenomenes electro-dynanaiques.' 



2330 KRAFFT (Friedrich, Univ. Heidelberg) KURZES LEHRBUCH der ANORGANISCHEN CHEMIE ; 

 with coloured table, and numerous woodcuts, large Svo. hf. blue calf gilt, 3s (p. M. 11. unbound) 



Leipzig, 1891 



2331 KRAKATOA, The ERUPTION of, and subsequent PHENOMENA: Report of the Royal Society's 

 KRAKATOA COMMITTEE, ed. by G. J. SYMONS, F.R.S., with coloured plates after W. ASCROFT, 

 showing the remarkable Twilight and After-glow Effects at CHELSEA, and numerous diagrams, 

 maps, etc., 4to. cl., 1. Is 1888 



2332 KRAMP (Christian; Unio. Strasbourg) ANALYSE des REFRACTIONS ASTRONOMIQUES et 

 TERRESTRES ; with plate, 4to. (pp. 230), sewn (rare), 10s Strasbourg, 1799 



'Containing a more complete investigation on the subject than any which had hitherto appeared ... My a vigorous 

 analysis Kramp deduced an expression for refraction involving two constants, the values of which it was possible to 

 determine without having recourse to astronomical observation.' Prof. R. Grant. 



2333 KRUPP (Alfred; German steel magnate), and Andreas WILDBERGER : The METALLIC 

 ALLOYS, with Appendix on their Coloring, trans., with extensive Additions, by WILLIAM T. 

 BRANNT, 16 woodcuts, post Svo. cl., 6s (p. 12s Gd) Philadelphia, 1889 



2334 KUHFF (Henry, Catherine Hall) ELEMENTS of the CALCULUS of FINITE DIFFERENCES, with 

 its Application to the SUMMATION and INTERPOLATION of SERIES, 8vo. sewn, 3s Cambridge, 1831 



2333 KUHN (Carl, Munchen) HANDBUCH der ANGEWANDTEN ELEKTRIZITATSLEHRE, mit besonderer 

 Beriicksiehtigung der theoretischen Grundlagen ; with 682 ivoodcuts, Svo. (pp. 1424), calf, 5s 

 (p. M. 54. sewn) Leipzig, 1866 



2336 KUNCKEL [v. L$WENST JERN ] (Johann) ARS VITRARIA EXPERIMENTALIS", oder 

 Vollkommene Glasmacher-Kunst . . . Die allerkurtz-biindigsten Manieren das reinste Chrystall- 

 Glass, alle gefarbte Glaser, kiinstliche Edelstein oder Fliisse, Amausen oder Schmeltze, Spiegeln, 

 Ultramarin, Lace- uiid ander niitzliche Mahler- Farben . . . zu machen . . . Sarnt einem II. Haupt- 

 Theil, mit mehr als 200 Experimenten vom Glasmahlen, Vergiilden und Brennen, vom Holland- 

 ischen Kunst- und Barcellan-Topiferwerk, Glas-brennen und Mahlen . . . mit einem 

 Anhange von den Perlen und fast alien natiirlichen Edelsteinen ; with engraved title, and 

 numerous other fine engraved plates, besides woodcuts, 4to. FINE COPY in contemporary vellum 

 (binding slightly damaged) ; RARE, 1. 10s Amsterdam und Dantzig, 1679 



FIRST EDITION of this classic work on the art of glassmaking, first containing the author's discovery of ruby glass, 

 besides a large number of useful recipes. The plates afford a very accurate picture of contemporary processes. 



C (August, Berlin) VORLESUNGEN liber EXPERIMENTALPHYSIK, herausgegeben [mit 

 kurzer Biographic] v. KARL SCHEEL ; with portrait, coloured plate, and 534 illustrations, large 

 Svo. (pp. 876), buckram, 11s Gd (p. M. 15. sewn) Braunschweig, 1903 



