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



2690 LONG-FIELD (Mountifort ; Q.C., Judge of the Landed Estates Court] ELEMENTARY TREATISE 

 on SERIES, 8vo. d. (scarce), 4s Dublin, 1872 



This work was unknown to the author's biographer in D. N. B. 



2691 LONGB1DGE (James Atkinson, M.I.C.B.) The ARTILLERY of the FUTURE, and the NEW 

 [SMOKELESS] POWDERS, diagrams, 8vo. d. (out of print), 3s Qd 1891 



Advocating high pressure in strong and comparatively short guns. 



2692 LOOMIS (Elias, Yale Umv.) ELEMENTS of the DIFFERENTIAL and INTEGRAL CALCULUS, 

 revised Ed., with diagrams, 8vo. sheep (rubbed), 4s New York, 1874 



2693 - INTRODUCTION to PRACTICAL ASTRONOMY, with Collection of ASTRONOMICAL TABLES, 

 5th Ed., diagrams, roy. 8vo. d., uncut, 3s ibidem, 1865 



2694 SEVENTH EDITION, diagrams, roy. 8vo. sheep (back damaged), 3s ib., 1868 or '72 



'The best work of the kind in the English tongue './. P. Nichol, LL.D. ''Containing much information for the 

 amateur astronomer '. Simon Neivcomb. 



2695 - The RECENT PROGRESS of ASTRONOMY, especially in the UNITED STATES, third Ed., 

 re- written and much enlarged, illustrated, 8vo. cl. (out of print), 5s ib., 1856 



'The work is clearly written, popular, but still with a precision which pronounces the author equal to his task.' 

 Westminster Rev. 



2696 LORENTZ (H. A., Lei/den) SlCHTBARE und UNSICHTBARE BEWEGUNGEN ; with 40 illus- 

 trations, 8vo. sewn, 2s (p. M. 3.) Braunschweig, 1902 



2697 LORENZ (Hans) NEUERE KUHLMASCHINEN, ihre Konstruktion, Wirkungsweiae und 

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2698 LOKENZ (Ludvig Valentin) CEuvRES SCIENTIFIQUES, revues et annote"es par H. VALEN- 

 TINER : Tome II, 2 e fascicule (Vie de 1'auteur ; deVeloppement des fonctions au moyen d'integrales 

 de"finies ; theoreme sur la fonction potentielle ; revaluation des aires, etc. etc.) ; with portrait, 

 Svo. sewn, 3s 6rf Copenhague, 1904 



2699 LOBENZINI (Lorenzo) EXERCITATIO GEOMETRICA : in qua agitur de Dimensione omnium 

 Conicarum Sectionum, Curvae Parabolicae, Curvaeque Superficiei Conoidis Parabolici, et 

 prrecipne unica Enunciatione indicatur Centrum Gravitatis etc. etc. ; with 14 folding plates, 4to. 

 fine copy in hf. roan gilt, 10s 6d FlorenticB, 1721 



This work was written during the author's 20 years' imprisonment at Volterra with no other help than his memory. 

 According to Wolf (Actu, Eruditorum) it is superior to the works of Apollouius of Perga and Viviani on the same subject. 



2700 LORHYLER (John, M.D.) CONCISE ESSAY on MAGNETISM ; with the Declination and Inclination 

 of the MAGNETIC NEEDLE, and an Attempt to ascertain the CAUSE of VARIATION thereof, with 

 fine portrait by Basire, and 6 folding copperplates, 4to. (pp. 49), sewn, 5s 1795 



2701 ANOTHER COPY, boards, uncut, with inscr. 'From the Author to General [Robert] 



Melville ' [FM.S., inventor of a naval gun], 6s 6d 



Containing an interesting ' Historical Account of the Discovery of Magnetism, and of the Magnetic Needle ' (pp. 11). 



2702 LOUIS (Henry, Durham Coll. of Science) HANDBOOK of GOLD MILLING front, from old print, 

 3 plates, and 120 woodcuts, thick cr. Svo. cl., 5s (p. 10s nett) 1894 



2703 LOURENCO (A. V., Lisbonne) RECHERCHES sur les COMPOSES POLYATOMIQUES, Svo. sewn, 

 with inscr. to Prof. A. W. Williamson, F.R.S., 2s 1863 



2704 LOVE (Augustus Edward Hough, F.R.S.) TREATISE on the MATHEMATICAL THEORY of 

 ELASTICITY, diagrams, 2 vols. Svo. cl., 10s (p. 1. 4s) University Press, Cambridge, 1892-3 



2705 LOVE (John) GEODJESIA : or the ART of SURVEYING and Measuring of Land made easie, with 

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 to lay-out New Lands in America, etc. etc., 2nd Ed., with Additions, diagrams, Svo. old calf, 

 7s Gd 1715 



2706 EIGHTH EDITION, corrected and improved by SAMUEL CLARK, diagrams, Svo. old calf 

 (back damaged), 5s 1768 



2707 LOVIBOND (Joseph W.) MEASUREMENT of LIGHT and COLOUR SENSATIONS : a New Method 

 of Investigating the Phenomena of Light and Colour by means of the Selective Absorption in 

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 'tintometer', numerous coloured plates, and woodcuts, Svo. cl., 3s Qcl (p. 7s 6d) [1893] 



2708 [LOTS de CHESEAUX (Jean Philippe)] ESSAIS de PHYSIQUE ; with plates, \2mo.fine copy 

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 COXTENU : Essai de Dynamiqv.e ; Traite de la Force de la Poudre a Canon ; Du Mouvement de 1'Air dans la Propagation du Son. 



2709 LOZEBAN du FESC (Louis Antoine, s.j.) DISSERTATION sur la CAUSE et la NATURE du 

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 boards (rare), 12s 1727 



This work received the prize of the French Academy. Bound up with it is ' Dissertation sur les Triremes ou Yaisseaux 

 de guerre des Anciens ' (without t.tle), pp. 71 [17211. 



^ w~^ ~^ .*MW *** W 4 MV - 1 



2710 LUBBOCK (Sir John William, F.R.S. ; father of Lord Avebary) On the THEORY of the MOON, 

 and on the PERTURBATIONS of the PLANETS: On the DETERMINATION of the DISTANCE of a 

 COMET from the EARTH, etc. : Account of the ' TRAITE sur le FLUX et le REFLUX de la MER ' by 

 DANIEL BERNOULLI; and Treatise on the ATTRACTION of ELLIPSOIDS 3 vols. Svo. in 1, boards, 

 uncut, 8s 6d 1833-2-1 



' His laborious researches in physical astronomy were mainly directed towards the simplification of methods ; and lie 

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 the time as the independent variable.' Miss A. M. Clerke. 



2711 , and John Elliot Drinkwater BETHUNE : On PROBABILITY, first edition, Svo. 



(pp. 64), sewn (scarce), 5s [1830] 



An excellent elementary treatise ... a binder's blunder caused this work to be often attributed to De Morgan, despite 

 his frequent disclaimers . . . Lubbock was foremost amongst English mathematicians m adopting Laplace's doctrine of 

 probability.'-J/ts A. M. Clerke. 



- See COURNOT, ante, and MORGAN, post. 



