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



2469 LA HUE (Warren de, F.R.S.), Balfour STEWART, F.R.S., and Benjamin LOEWY : 

 RESEARCHES on SOLAR PHYSICS, II. SERIES : AREA-MEASUREMENTS of the SUN-SPOTS, observed 

 by CARRINGTON [q. v. ante], 1854 60, and Deductions therefrom, with APPENDIX on their Distribu- 

 tion in Heliographic Latitude, 4 plates, 2 parts roy. 4to. (pp. 42), sewn, 4s privately printed, 1866-8 



2470 LA HIVE (Auguste Arthur de) TRAITE d'KLECTRiciTE THEORIQUE et APPLIQUEE ; with over 

 440 woodcuts, 3 vols. 8vo. hf. calf, 12s Qd 1854-8 



2471 ANOTHER COPY, hf. brown morocco (nice copy), 16s 



2472 ANOTHER COPY, hf. purple morocco extra (fine copy], 18s 6d 



2473 - TREATISE on ELECTRICITY in THEORY and PRACTICE, trans, by CHARLES V. WALKER, 

 F.R.S., numerous woodcuts, 3 thick vols. Svo. cl. (scarce) ; 1. 5s 1853-8 



2474 ANOTHER COPY, hf. purple morocco extra (fine copy], 1. 12s Qd 



This still valuable work contains in a collected form all the author's important discoveries and investigations. De 

 la Rive was one of the founders of the electro-chemical theory of galvanism, which, slightly modified, was accepted by 

 Faraday ; he was also the inventor of the first gold-plating process, for which he received a prize of 3000 francs from the 

 Paris Academy. 



2475 : NOTICE BIOGRAPHIQUE, par J. Louis SERET, with photo-portrait, roy. Svo. sewn, uncut, 

 4s Gen&ve, 1877 



2476 LABKIN (N. J.) INTRODUCTION to SOLID GEOMETRY, and to the STUDY of CRYSTALLOGRAPHY, 

 containing an Investigation of some of the Properties belonging to the PLATONIC BODIES inde- 

 pendent of the Sphere, with 4 folding plates by Lowry, Svo. cl., or, hf. calf, 3s Qd 1H20 



2478 LASSAR-COHN (Dr., Kdnigsberg) : ARBEITSMETHODEN fur ORGANISCH-CHEMISCHE LABORA- 

 TORIEN, 3. vollstandig umgearbeitete Auflage ; with 131 illustrations, COMPLETE in 5 parts roy. 

 Svo. sewn, 1. 5s (p. M. 40.) Hamburg, 1901-3 



2479 LABORATORY MANUAL of ORGANIC CHEMISTRY, trans, from the 2nd German Ed., by 

 ALEXANDER SMITH, with 42 illustrations, cr. Svo. cl., 4s (p. 8s Qd) 180.5 



2480 LATHAM (Baldwin, C.E.) SANITARY ENGINEERING: a Guide to the Construction of Works 

 of SEWERAGE and HOUSE DRAINAGE, with Tables for facilitating the Calculations of the Engineer, 

 21 plates, and numerous woodcuts, Svo. hf. calf (title stamped) ; scarce,, 15s (p. 1. 10s) 1873 



A standard work on the subject ; now out of print and scarce. 



2481 LATHAM (H., Trinity Hall, Cantab.) GEOMETRICAL PROBLEMS in the PROPERTIES of the 

 CONIC SECTIONS, diagrams, Svo. sewn, Is Qd Cambridge, 1848 



2482 LATITUDE, SERIES of PAMPHLETS on the DETERMINATION of (in various Languages), between 

 1830 and 1890, with plates, 11 pieces 4to. (one Svo.) in 1 vol. 4to. hf. calf neat, 12s Qd v. p., 1830-00 



Including the following authors : J. F. Encke, '30: Chr. Hansteen, '49: E. Plan'tamour, 73 : G. Lorenzoni, '75 : ('. 

 Weyprecht, '77: K. Oertel, '85: II. Geelmuyden, '88: A. A. Rambaut, '89; F. Porro, '90: and Commissione Italiana p r 

 la Mi>ura de' Gradi in Europa, '75. 



2483 LAURENT (Aug-uste) METHODE de CHIMIE, Svo. hf. calf gilt (nice copy) ; scarce, 12s Qd IS'A 



2484 CHEMICAL METHOD, NOTATION, CLASSIFICATION, and NOMENCLATURE, trans, by WIL- 

 LIAM ODLING, F.R.S., Svo. cl., 8s Cavendish Soc., 185o 



Containing the author's substitution theory. He was the first to distinguish clearly between the definitions of 

 molecular, atomic, and equivalent weights, and to point out that the substitution of hydrogen by halogenic atoms does 

 riot materially alter the properties of a chemical compound. 



2485 LAURENT (Hermann) THEORIE des RESIDUS, Svo. boards, 2s Qd 1863 



2486 TRAITE d'ANALYSE ; with diagrams, 7 vols. Svo. hf. green morocco, cl. sides (nice set), 



2. 15s 1885-91 



CONTKNU: I. CALCUL DIFFERKNTIEL. Applications analytiques : II. Applications geometriques: III. CALCVL 

 INTEGRAL. Integrates d^finies et indefinies : IV. Tlieorie des functions algebriques et leurs integrates : V. EQUATIONS 

 DIFFRENTIELLES ordinaires : VI. Equations aux derivees partielles : VII. Applications geometriques de la theoric cU i s 

 equations differentielles. 



2487 TOME I: CALCUL DIFFERENTIEL, Applications Analytiques et Geometriques, Svo. sewn, 



5s (p. F. 10. nett) 1885 



2488 [LAURIE (James)] EXAMINATION of the ASTRONOMICAL DOCTRINE of the MOON'S ROTATION, 

 with plate, Svo. cl., 5s Edin., 1847 



The authorship of this pamphlet (which was unknown to Halkett and Laing), denying the moon's rotation, is revealrd 

 in Prof, de Morgan's Budget of Paradoxes, where the work is characterized as % a systematic attack of the character 

 afterwards made with less skill and more notice by Mr. Jellinger Symons.' 



2489 LAVOISIER (Antoine Laurent) OEuVRES, publiees par les soins du Ministre de 1'Instruction 

 Publique [Editeur : JEAN BAPTISTE ANDRE DUMAS, President de 1'Academie des Sciences] ; 

 with fine portrait by Levasseur, and numerous folding plates, 4 thick vols. 4to. boards, uncut (out 

 of print), 2. 15s Imprimerie Imperiale, 1864-8 



The only complete edition of Lavoisier's works and memoirs ever issued. 



2490 : MEMOIRES de PACADEMIE ROYALE des SCIENCES, 1782-3 [pp. 457-576, containing various 



MEMOIRS by LAVOISIER], 2 fine copperplates, 4to. sewn, 5s 1782-3 



2491 : METHODE de NOMENCLATURE CHIMIQUE, proposee par MM. DE MORVEAU, LAVOISIER, 



BERTHOLET [sic] , et DE FOURCROY ; on y a joint un nouveau Systeme de Caracteres Chimiques, 

 adaptes h, cette Nomenclature, par HASSENFRATZ et ADET ; with 7 tables, Svo. old mottled calf 

 gilt (VERY RARE), 1. 11s Qd 1787 



FIRST EDITION of this important work, first propounding the principles of chemical nomenclature now in use. 



' The reform of language effected by Lavoisier was an indispensable prelude to the reform of [anti-phlogistic] thougM. 

 The new terminology prevailed without change for 50 years, and has been fitted, by trifling modifications, to meet the 

 exigencies of recent progress. 'Ency. Brit. 



2492 OPUSCULES PHYSIQUES et CHIMIQUES, TOME I** (SEUL PARU) premiere edition ; with 



3 folding plates, Svo. contemporary hf. calf gilt (RARE), 1. Is 1774 



In this work Lavoisier first gives his investigations into the properties of air, in connexion with numerous experiments, 

 and lays the basis of his anti-phlogistic theory. 



2493 SECO^DE EDITION [augmentee] ; with 3 plates, Svo. sewn, uncut, 10s Qd 1801 



1 Get ouvrage, a 1'exception des tables, fut imprime pendant la detention du citoyen Lavoisier '. Avis au lecteur. 



