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



9994 KANT (Immanuel) GEDANKEN von der wahren SCHATZUNG der LEBENDIGEN KRAFTE und 

 BEURTHEILUNG der BEWEISE deren sich Herr von LEIBNITZ und andere Mechaniker in dieser 

 Streitsache bedienst haben, nebst einigen vorhergehenden Betrachbungen, welche die Kraft der 

 Kb'rper iiberhaupt betreffen ; with 2 folding plates, 8vo. sewn (rare], \'2s Qd Konigsberg, 1746 



FIRST EDITION OK THE PHILOSOPHER'S FIRST PUBLICATION, issued in his 23rd year, and chiefly interesting for showing 

 his strong individuality. 



9995 METAPHYSISCHE ANFANGSGRUNDE der NATURWISSENSCHAFT, neueste Auflage, 8vo. 



boards, 6s Frankfurt, 1794 



Not only important as closely connected with the author's philosophical theory, it is also the first connected attempt 

 at laying a philosophical basis for natural science. 



9996 PHYSISCHE GEOGRAPHIE, auf Verlangen des Verfassers aus seiner HS. herausgegeben 



und zum Theil bearbeitet von FRIEDRICH THEODOR RINK, 2 vols. 8vo. in 1, contemporary tree- 

 calf, 9s Konigsberg, 1802 



9997 ZWEITE durchausumgearbeitete AUFLAGE, 2 vols. 8vo. in 4, boards, 12s Hamburg, o. J. 1817 



The work containing the philosophers meteorological theories. 



9998 KAFP (Gisbert, Univ. Birmingham] | ELECTRIC TRANSMISSION of ENERGY : its Transformation, 

 Subdivision, and Distribution, new Edition revised, with plates and 'woodcuts -, post 8vo. cl., 2s 

 (p. 7s Qd) 1890, or '1 



9999 KAPTEYN (Jacobus Cornelius; Univ. Groningen) On the ABSORPTION of LIGHT in SPACE, 

 2 parts roy. 8vo. (pp. 45), sewn, Is Qd Washington, 1909 



10000 Der APEX der SONNENBEWEGUNG, die CoNSTANTE der PRAECESSION und die CORREC- 



TIONEN der ElGENBEWEGUNGEN in DECLINATION VOn AUWERS-BRADLEY, 4to. (pp. 18), sewn, 

 2s [Kiel], 1901 



10001 BESTlMMUNGVOnPARALLAXENdurch REGISTRIR-BEOBACHTUNGENamMERIDIANKREISE, 



4to. boards, with author's inscr., 5s Haag [1888] 



10002 KAPTEIJN(W. ; Utrecht) NoUVELLEMETHODEpOUrl'lNTEGRATION del'EQUATIONDlFFERENT- 

 IELLE (g) 2 =G 2 (u-a) (ti-/3) (u-y) (u-o), 4to. (pp. 28), sewn, 2s 6d [1891] 



J0003 - - RECHERCHES sur les FONCTIONS de FOURIER-BESSEL, 4to. (pp. 32), sewn, 2s Qd 1893 



10004 KAST (Hermann), and Friedrich HOSE : About the COMPOSITION of the MIXTURE of GASES 

 forming in MINERAL OIL LAMPS and the FLASH POINT of MINERAL OIL, with folding table, 8vo. 

 (pp. 15), sewn, Is 6d [1896] 



10005 KASTNEB (Carl Wilhelm Gottlob ; Univ. Halle) EINLEITUNG in die NEUERE CHEMIE, 8vo. 

 hf. calf, 3s Qd Halle, 1814 



Including an interesting ' Chronologische Uebersicht der Geschichte derChemie' (pp. 174). 



10006 K ASTNEB( Abraham Go tthelf; F.R.S. ; Univ. Gottingen, teacher of Gauss) ANFANGSGRUNDE 

 der ANALYSIS ENDLICHER GROSSEN, 1. Auflage ; with Opiates, sm. 8vo. boards, uncut, 2s Qd 



Gottingen, 1760 



10007 GESCHICHTE der MATHEMATIK, seit der Wiederherstellung der Wissenschaften bis an das 



Ende des XVTII. Jahrhunderts, 4 vols. 8vo. extra boards, r.e. (fine copy], 10s 60? ibidem, 1796-1800 



A work still valued, though rather a bibliography than a history of mathematics. 



10008 VOLS. Ill AND IV ONLY, 2 vols. 8vo. boards, 3s Qd ib., 1799-1800 



Vol. IV contains mechanics, optics, and astronomy. 



10009 MATHEMATISCHE ANFANGSGRUNDS ; with numerous plates, 4 vols. 12mo. in 10, con- 

 temporary hf. calf (sound copies], \2s 6d ibidem, 1790-1801 



INHALT : I. Arithinetik, Geometrie, Trigonometric, uud Perspectiv, 4 v., 1790-1801 : II. Angewandte Mathematik, 

 2 v., '92 : III. Analysis, 2 v., '94-9 : IV. Hohere Mechanik, 2 v., '93-7. 



Prof. S. Gtinther (in Cantor's Vorlesungen) speaksof 'die wirklich hohe Bedeutung dieser Reihe stufenweise aufsteigender 

 Lehrbiicher . . . welche in der Didaktik des XVIII. Jahrhunderts die bis dahin fast des Monopoles der Alleinherrschaft 

 sich erfreuenden C. von Wolfs ablosten.' 



10010 KATEB (Captain Henry, 62nd Foot; F.R.S.) NAUTICAL ASTRONOMY (Encyclopaedia 

 Metropolitana), with 2 plates, 4to. (pp. 40), boards, 3s [1822] 



10011 , and Dionysius LABDNEB, pr., F.R.S.: TREATISE on MECHANICS, first edition, 



with vignette by Finden, and numerous steel plates by Adlard, fcap. 8vo. cl., 3s bd 1830 



10012 NEW EDITION [unchanged], with vignette and steel plates, fcap. 8vo. hf. calf neat, 4* 1837 



The chapter on balances and pendulums, written by Capt. Kater, is of .special importance, as it includes the author's 



important investigations and discoveries on the subject, e.g. his Balance and Compensation Pendulum. 



Captain Kater's scientific career began with his share in the triane;ulation of the Malabar and Coromandel coasts in 



1802. He afterwards prepared standard measures for the Russian Government, and thenceforward pursued astronomy, 



and also devoted much time to pendulum experiments by the adoption of the ' knife-edge ', and produced a seconds-pendulum 



of extraordinary delicacy, which served in the establishment of our present national system of standard weights and 



measures. 



10013 KAUF MANN [latine MEBCATOB] (Nikolaus ; F.R.S.) INSTITUTIONES ASTRONOMIC^ de 

 Motu Astrorum communi et proprio, secundum Hypotheses Veterum et Recentiorum prrecipuas ; 

 deque Uypotheseon ex Observatis Constructione, cum TABULIS TYCHONIANIS et RUDOLPHINIS, 

 etc. etc. ; with diagrams, 12mo. old calf (sound copy), WsQd Londini, 1676 



Kaufmann was one of the earliest members of the R jyal Society, and contributed to its Transactions. 



10014 KEATINGE (Lt.-Col. Maurice Bagenal St. Leger, M.P.) EIDOMETRIA ; or Optic 

 Mensuration, and (Corollary) Perspective, with 4 plates : PRINCIPLES of PERSPECTIVE ; with 

 Sketch of some Irish Antiquities ; and a few Thoughts on Rustic Embellishment and the 

 Picturesque, with 10 plates 2 vols. oblong folio in 1, boards (name cut off title), 7s 6d 1812 



10015 KECKEBMANN (Bartholomeeus) SYSTEMA COMPENDIOSUM totius MATHEMATICES, hoc 

 est, GEOMETRIC, OPTIC/E, ASTRONOMIC et GEOGRAPHIC ; accesserunt COMMENTATIO NAUTICA 

 et Index ; with folding plates, and diagrams, thick 12mo. sound copy in contemporary English 

 calf,SsQd Oxonii,' 1661 



