HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 613 



10272 KOLL (Otto) Die Tiieorie der Reobachtungsfehler und die Methode der kleinsten 

 Quadrate, mit ihrer Anwendunt? aiif die Geodixsie und die Wassermessungen, 2. [neueste] 

 AuHage ; with 65 diagrams, large roy. 8vo. hf. cl.. Is (p. M. 11.20) Berlin, ISOl 



10273 KONUNENBURG (E. van, i. w.) Scheiding van Maas en Waal : Resclirijving van den 

 vroegeren Waterstaatkundigen Toestand in NoordbraLant, alsmede van de Werken uitgevoerd 

 voor de Verlegging van den Maasmond ; with \0 folding plans, besides text-illvstrations, cr. 4 to. 

 seivn, 3* 's-Gravenhage, 1905 



10274 KOPP (Hermann; Univ. Heidelberg, f.r.s.) Die Alchemie in alterer und neuerer 

 Zeit ; ein Beitrag zur Culturgeschichte, 2 vols. 3vo. hf. cl. {o. p.), I2s 6s (p. M. 18) Heidelberg, 1886 



The most complete history of alchemy. 



10275 Beitrage zur Geschichte der Chemie ; with plate, 3 vols. roy. Svo. in 2, hf cL, 17a 6d 



(p. M. 30 sewn) Braunschweig, 1869-75 



Vol. HI is entitled : ' Ansichten iiber die Aufgabe der Cheaiie und iiber die Grundbestandtheile der KiJrper bei den 

 bedeutenderen Chemikern von Geber bis G. E. Stahl. Die Entdeckung der Zusammensetzung des Wasseis.' 



10276 Die Entwicklung der Chemie in der neueren Zeit; the Author's Proof Copy, 



with all his Corrections, roy. Svo. hf. morocco, uncut, £1. 1* Miinchen, 1873 



10277 Geschichte der Chemie; with 4 portraits, 4 vols. Svo. hf roan (very scarce), 



£3. 15* Braunschweig, 1843-7 



1027S Another Copy, 4 vols, in 2, neu-ly bound in hf. polished crimson morocco gilt, t. e. g., £4. 4s 



' Distinguished by its comprehensiveness and thorou<:hne.ss. He possesses in a remarkable degree the gift of sym- 

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

 This work has never been reprinted, and is now becoming increasingly rare. 



10279 Volume I only, Svo. sewn, uncut (SCARCE), £1. 1* ib., 1843 



10280 Volumes III and IV only, with portraits of Sir Humphry Davy and Liebig, 2 vols. 



Svo. sewn, \2s 6d ib., 1845-7 



10281 Sonst und Jetzt in der Chemie, Svo. sewn. Is ib., 1867 



10282 KOBISTKA (Carl) Studien iiber die Methoden und die Benutzung hypsometrischer 

 Arbeiten, naehgewiesen an den Niveau verlialtnissen der Umgebungen von Prag ; with woodcuts 

 and 2 folding maps {coloured), 4to. sewn, 5s (p. M. 12) Gotha, 1858 



10283 KOBN (Arthur ; Univ. Munich) Lehrbuch der Potentialtheorie. Allgemeine Theorie 

 des Potentials und der Potentialfunktionen im Raume. Allgemeine Theorie des logarithniischen 

 Potentials und der Potentialfunktionen in der Ebene ; with 152 diagrams, 2 vols, large Svo. in 1, 

 hf. cL, Us Qd (p. M. 18 sewn) Berlin, 1899- ISOl 



10284 KOBTAZZI (Ivan; Nikolaiev Oftscrva^orv) Bestimmung der Langen-Differenz zwischen 

 PULKOWA, Helsingfors, Abo, LowiSA und WlBORG, impl. 4to. (pp. 69), sewn, 3* 



St. Petersbourg, 1871 



10285 KOTEN (J. H. van) De Galvanische Stroom toegepast op electro- magnetische Telegrafen 

 en Uurwerken ; with 4 folding plates, large cr. Svo. sevm (scarce), 6s 6d Amsterdam, 1855 



Intel esting as an early work on electric clocks. 



10286 KOTHNER (Paul) Notjz iiber das wahrscheinliche Atomgewicht des Tellurs und iiber 

 Atomgewichtsrechnungen iiberhaupt, roy. Svo. (pp. 7), sewn. Is Hamburg, 1903 



10287 , und E. AEUEB : Ueber das Atomgewicht des Jods ; with 3 illustrations, Svo. 



(pp. 47), sewn, 2s Lei]uzig, 1904 



Added is the authors' first paper as published in the 'Berichte der chcm. Ges.' 



10288 KOVESLIGETHY (Rad6) Mathematikai ^s Csillagaszati Foldrajz Kezikokyve ; 

 vith 320 illustrations, large Svo. cl., with bookplate of Dr. Emil Reich, is 6d Budapest, 1899 



10289 KOWAXSKI (Marian, Univ. Kazan) Recherches sur la Refraction Astronomique, roy. 

 Svo. cl. {scarce), .5s Kasan, 1878 



10290 Another Copy, sewn, with author's inscr., As 6d 



10291 KRAFFT (Georg Wolfgang) Description et Representation exacte de la Maison de 

 Glace, construite ii St. Petersbourg au Mois de Janvier 1740, et de tons les Meubles qui s'y 

 trouvoient ; avec quelques Remarques sur le Froid en general, et particulierenient sur celui 

 qu'on a senti cette meme Annee dans toute I'Europe, traduit par Pierre Louis Le Roy ; with 6 

 plates, 4to. (pp. 32), sewn. Is 6d St. Petersbourg, 1741 



An account of the celebrated Hard Winter throughout Europe in 1740 when coaches plied on the Thames. It includes 

 a liist of historical frosts of great severity, many of which are unnoticed in Haydn's Dictionary of Dates. 



10292 KRAFT (Max, Univ. Graz) Das System der teciinischen Arbeit, II.-III. Abtheilung; 

 "NVirthschaftliehe Grundlagen und Rechtsgrundlagen, 2 vols. roy. Svo. sewn, 5s (p. M. 10) 



Leipzig, 1902 



10293 KRAKATOA, The Eruption of, and subsequent Phenomena : Report of the Royal 

 Society's Krakatoa Committee, edited by G. J. Symons, f.r.s., v-ith numerous diagrams, 

 maps, and COLOURED plates after W. AscROFT, showing the remarkable Twilight and After-glow 

 Effects at Chelsea, 4to. cl., 18* 6d (p. £1. 10* nett) 'l888 



10294 Another Copy, cl. {ba^k damaged). Ids 



The scientific account of the tremendous volcanic outbreak in the Eastern Archipelago, probably the greatest eruption 

 on record, which destroyed on the spot or by a resulting tidal wave 36,500 lives, and set up a series of concentric atmo- 

 spheric waves which travelled at least three times round the world. It produced for more than two years, by dust 

 thrown up to an immense height, the most lovely atmospheric ettc-cts throughout the world, which were paiiited for their 

 beauty by an artist at CheLsea, Mr. Ascroft. before anyone had guessed to what cause they were due. 



Included in the volume are: Volcanic Phenomena and the Ejected Mateiials, by J. W. Judd, f.r.s. ; Air Waves and 

 Sounds caused by the Eruption, by Lt.-Gen'. Str R. Strachev ; Seismic Sea Waves, by Sir W. J. L. Wharton ; Unusual 

 Optical Phenomena of the Atmosphere, by the Hon. F. A. R. Ru.s.skll and E. DoroLAS Archibald ; and Magnetical and 

 Electrical Phenomena, by G. M. Whipple. 



10295 KRECKE(F.W.C., Utrecht) De Dissociatie-Vebschij.nselen van WaterigeOplossingen 

 van Chloretum Ferricum, Svo. (pp. 20), sewn. Is 6d Amsterdam, 1871 



