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



10249 KOBEL (Jacob, Stadtschreiber zu Oppenhevm) GEOMETREI. Von KUNSTLICHEM FELDMESSEN 

 vnnd ABSEHEN | Allerhand Hohe | Fieche | Ebne | ^yeitte vnnd Breyte : Als Thurn | Kirchen 

 | Baw | Baum | Felder vnd Ecker 50. Mit fast wercklich vnd kunstlich zubereytem Jacob Stab 

 | Philosophischen Spiegel | Schatten | vii Messruten . . . Dabei I von bereytung j verstand vnd 

 vilfaltigem niitzlichen GEBRAUCH des QUADRANTEN ; with very numerous well-executed woodcuts 

 by JOST AMMAN, sm. 4to. sewn (one I. very slightly defective, otherwise a VERY SOUND AND 

 CLEAN COPY) ; VERY RARE, 1. 15 Franckfurt am Meyn, Christian Engenolfts Erben, 1563 



' This work on land-surveying and the use of the quadrant is far rarer than his Arithmetic [or his ASTROLABII 

 BKOLARVTIO, No. 2320 ante}. In it he makes use of Arabic numerals.' Librl Catalogue. The work is much valued 

 for its fine wood-engravings by JOST AMMAN. 



10250 KOBELL (Franz v.; Univ. Munich) GRUNDZUGE der MINERALOGIE ; with 4 folding plates : 

 TAFELN zur BESTIMMMUNG der MINERALIEN mittelst einfacher chemischer Versuche auf trockenem 

 und nassem Wege, 3. vermehrte Auflage 2 vols. 8vo. in 1, hf. morocco neat, 4s 6d 



Nurnberg, 1838Miinchen, '38 

 The author enlarged the system of Berzelius, classifying minerals according to their chemical composition. 



10251 INSTRUCTIONS for the DISCRIMINATION of MINERALS, by SIMPLE CHEMICAL EXPER- 

 IMENTS, translated by R. C. CAMPBELL, with woodcuts, 8vo. (pp. 46), unbound, 3s Glasgow, 1841 



10252 KOENIG (Friedrich) und die ERFINDUNG der SCHNELLPRESSE : einbiographisches Denkmal, 

 von THEODOR GOEBEL ; with fine portrait, Opiates, fs. letter, and 22 woodcuts, folio, sewn (a few 

 II. torn and 2 pp. soiled), 6s (p. M. 12) Stuttgart, 1883 



The printing machine was first used for printing The Times of Nov. 29, 1814. 



10253 KOENIGS (Gabriel) LECONS des CINEMATIQUE professe"es h, la Sorbonne, avec des Notes par 

 GASTON DARBOUX et E. et F. COSSERAT : CINEMATIQUE THEORIQUE ; with 93 diagrams, roy. 8vo. 

 hf. crimson morocco neat (fine copy), with bookplate of Prof . Lloyd Tanner, F.R.S., 10s 6d 1897 



10254 KOENIGSBEBGEB (Leo), und Gustav ZETJNEB ; REPERTORIUM der literarischen 

 Arbeiten aus dem Gebiete der REINEN und ANGEWANDTEN MATHEMATIK : ' Originalberichte 

 der Verfasser,' gesammelt und herausgegeben von, 2 vols. 8vo. in 11 parts, sewn, 6s 6d (p. M. 17.20) 



Leipzig, 1876-9 



10255 KOERBEB (Felix) Ueber den COMETEN 1835 I. : Inaugural-Dissertation; with 2 plates, 8vo. 

 sewn, 2s Breslau, 1887 



10256 KOHLEB (Heinrich Gottlieb) LOGARITHMISCII-TRIGONOMETRISCHES HANDBUCH fiir alle 

 Zahlen bis 108000 auf SIEBEN DECIMALSTELLEN, mit den Gaussischen und natiirlichen Logarith- 

 men, goniometrischen Funktionen, u. s. w., roy. 8vo. boards, 2s Leipzig, 1862 



10257 KOHLEB (Wilhelm) On the INFLUENCE of FLUCTUATIONS of ATMOSPHERIC PRESSURE on 

 the EVOLUTION of FIRE-DAMP, translated by G. G. BAGSTER, with 2 plates and 10 folding tables, 

 4to. (pp. 18), sewn, 3s 6^ Vienna, 1886 



10258 KOHLBAUSCH (Friedrich; F.R.S.) LEITFADEN der PRAKTISCHEN PHYSIK, mit einem 

 Anhange : das elektrische und magnetische absolute Maas- System, 5. vermehrte Auflage ; with 

 diagrams, 8vo. sewn, Is 6d (p. M. 5.60) Leipzig, 1884 



10259 LEHRBUCH der PRAKTISCHEN PHYSIK, 10. vermehrte Auflage des Leitfadens der 



praktischen Physik; with numerous illustrations, 8vo. cl., 5s (p. M. 9) ibidem, 1905 



10260 INTRODUCTION to PHYSICAL MEASUREMENTS, with Appendixes on Absolute Electrical 



Measurement, etc., translated from the 2nd German Edition by THOMAS HUTCHINSON WALLER 

 and HENRY RICHARDSON PROCTER, with 25 diagrams, 8vo. hf. morocco neat, 3s (p. 12s) 1873 



10261 SECOND EDITION [enlarged] , translated from the 4th German Edition, with 37 diagrams, 



8vo. cl., 4s 6d (p. 15s) 1883 



10262 THIRD [LAST] EDITION [enlarged] , translated from the 7th German Edition, with 91 



diagrams, 8vo. cl., Is 1894 



10263 KOKSCHABOW (General Nicolai v.) BEITRAGE zur KENNTNISS einiger MINERALIEN 

 (Magnesia-Glimmer vom Vesuv; Brookit ; Molybdanglanz und Pyrosmalith; Topas) ; with 

 diagrams, 8vo. (pp. 24), sewn, 3s 6d [St. Petersburg, c. 1857] 



10264 MATERALIEN zur MINERALOGIE RUSSLANDS, Band IV V ; with woodcuts and diagrams, 



2 vols. roy. 8vo. in 4 parts, sewn, 12s 6d ibidem, 1861-9 



' A Monsieur M. le Professeur Maskelyne a Londres, Souvftnir d'amitie de 1'auteur.' Inscr. on cover. 



' The classic mineralogical work by ' the father of Asiatic Mineralogy '.'Prof. Nevil Story Afaskelyne, F.R S. 



10265 MINERALOGISCHE NOTIZEN iiber den PAJSBERGIT und GRAPHIT ; with diagrams, 



roy. 8vo. (pp. 13), sewn, 2s [ib., 1863] 



10266 KOLBE (Adolph Wilhelm Hermann, F.R.S) Uber den NATURLICHEN ZUSAMMENHANG der 

 ORGANISCHEN und UNORGANISCHEN VERBINDUNGEN, 8vo (pp. 42), sewn (no title\; scarce, 5s 6d 



[Leipzig, 1859] 



One of the author's most important memoirs, in which ' the revived radical theory attained to its completed form.' 

 Prof. E. v. Meyer. 



10267 RESEARCHES on the ELECTROLYSIS of ORGANIC COMPOUNDS, communicated by 



A. W. v. HOFMANN, 8vo. (pp. 28), sewn, 4s [c. 1850] 



By decomposing acetic and valerianic acid by the electric current, the author obtained the radicals methyl and valyl 

 [i.e. butyl]. It was the tirst attempt at the electrolysis of organic acids. 



10268 , and Sir Edward FBANKLAND, F.R.S. : On the PRODUCTS of the ACTION of 



POTASSIUM on CYANIDE of ETHYL, with woodcut, 8vo. (pp. 15), sewn, 3s 6d [1847] 



Containing the discovery of kyanethine. 



10269 : UNTERSUCHUNGEN aus dem ACADEMISCHEN LABORATORIUM in MARBURG, Xr. 



XV XX ; with woodcut, 8vo. (pp. 48), sewn, 3s [Leipzig, U61] 



Consisting mainly of contributions by Kolbe. 



10270 KONIG (Budolf) BESTIMMUNG der BAHN des KOMETEN 1857 III. ; roy. 8vo. (pp. 50), sewn, 

 with inscr. to J. R. Hind, F.R.S., Is 6d Wien, 1891 



