HENRY SOTHEKAN & CO., 140, STRAND, W.C, AND 43, PICCADILLY, W. 549 

 11048 LOVETT (Richard) The Electrical Philosopher, containing a New System of Physics 

 FOUNDED upon the Principle of a Universal Plenum of Elementary Fire, wherein the 

 Nature of Elementary Fire is explain'd, its Office pointed out, its extensive Influence and Utility 

 in explaining many of the most abstruse Phenomena of Nature shewn, and the Grand Desider- 

 atum in particular which has been hitherto either entirely given up as inexplicable, or else 

 sought after in vain by the most able Naturalists, is at length happily obtain'd, viz. the Cause 

 of Gravity, the Cause of Cohesion, etc. etc., with Postscript containing Strictures upon the 

 uncandid Animadversions of the Monthly Reviewers, xoith 2 folding plates, 8vo. contemporary 

 hf. calf {rare), I5s Worcester, 1774 



11049 Philosophical Essays : I. Enquiry into the Nature and Properties of the Electric 



Fluid, in order to explain . . . the Truth of Sir I. Newton's Doctrine of a Subtile Medium or 

 /Ether. II. Dissertation on the Nature of Fire in general, and the Production of Heat in 

 particular. III. Miscellaneous Discourse, wherein the forementioned active Principle is shewn 

 to be the only probable Mechanical Cause of Motion, Cohesion, Gravity, Magnetism, etc. ; with 

 Appendix on the Variation of the Magnetic Needle or Mariner's Compass ; by wliich the 

 Longitude is investigated on the most simple Principles, and Glossary of Terms, with 4 folding 

 copperplates, 8vo. boards, uncut (rare), 155 ibidem, 1766 



With lonji; list of subscribers, including Dr. Prie.stley, Abraham Bennet, f.b..s., etc. etc. 



The author was a rare example of a scientific, or would-be scientific, choirinan, as he was one of the Lay Clerks of 

 Worcester Cathedral for :>8 years till his death in 1780. He was an early dabbler in medical electricity, and advertised 

 him.self as able to effect cures of the throat by its u.se; but he only got budgetted for his pains by Profe.ssor de Morgan 

 as ' a mere theorist : one of those ether philosophers who bring in ela-stic fluid as an explanation by imposition of words, 

 without deducing any one phenomenon from what we know of it.' 



11050 LOWEIiL (Percival, Director Lowell Observatory, Flagstajf, Ariz.) Mars, with 24 plates, 

 and 3 srnaller illustrations, 8vo. cl. {a number of II. and plates loose), Qs (p. 12s 60^) 1896 



11051 Second Edition, with26 j^^^^^y «^^ 3 other illustrations, 8vo. cl., tincut, t. e. g. (0. p.). 



Is 6d 1896 



11052 L6wIG (Carl Jacob; U7iiv. Breslau), und Matthias Eduard SCHWEIZEB: tJber 

 Stibaethyl, ein neues antimonhaltiges, organisches Radical, 3 parts 8vo. (pp. 48), sewn, 



m 45 6rf Zurich, 1850 



P An acf'ount of the discovery of triethyl of antimony, based on Sir E. Frankland's discovery of ethyl of antimony. 



11053 LOWRY (Thomas Martin, f.c.s.) Studies of the Terpenes and Allied Compounds. 

 Nitrocamphor and its Derivatives, 8vo. (pp. 21), sewn, \s 1898 



11054 LOYS de CHESEAUX (Jean Philippe, de V Academic des Sciences) Memoires Posthumes 

 sur Divers Sujets, d'AsTRONOMiE et de Mathematiques, avec de nouvelles Tables tres- 

 exactes, des moyens Mouvemens du Soleil et de la Lune ; with 4 folding copperplates, 4to. 

 contemporary boards, uncut, icith auto, of L. C. Bouvier, lO? 6d Lausanne, 1754 



Including ' Probleme sur I'oscillation du pendule dans un arc de cercle ': ' Sur les Satellites en generaj, et sur ceux du 

 Saturne en particulier' : ' Probleme Geometrique sur le Nombre de Personnes qui meureut dans chaque Age.' 



11055 LUBBOCK (Sir John William ; banker and astronomer; v.P.R.S. ; Lord A vebury's father) 

 Account of the ' Traite sur le Flux et le Reflux de la Mer ' of Daniel Bernoulli ; and 

 Treatise on tlie Attraction of Ellipsoids, with diagrams, 8vo. (pp. 55), sewn, 4* 1830 



11056 Elementary Treatise on the Computation of Eclipses and Occultations, with 



folding plate, 8vo. (pp. 40), sewn {scarce), with auto, of the Duca di Rignano, Is Qd 1835 



Lord Avebury's father was a striking example of the union of great business ability with success in exact science. Ho 

 showed the former in piloting the family bank through the bad panics of 1S47 and 1857— his death saved him from the 

 terrors of Black Monday in 1866. ' His laborious researches in physical astronomy were mainly directed towards the 

 simplification of methods ; and he introduced uniformity into the calculation of lunar and planetary perturbations by 

 employing in the former, as in the latter, the time as the independent variable. He was foremost among English 

 mathematicians in adopting Laplace's doctrine of probability, and he was the joint author, with Drinkwater, of an 

 excellent elementary treatise on probability [q. v , So. 2711 ante] in 1S30, which a binder's blunder caused to be oftea 

 attributed to De Morgan, desjjite his frequent disclaimers.' — i/iss Agnes M. Clerke, 



11057 LUC (Jean Andre de, f.r.s. ; reader to Queen Charlotte) Idees sur la Met^orologie ; 

 v-ith 2 folding plates, 2 vols. 8vo. nice copy in contemporary French calf extra (scarce), 

 18.5 6d 1787 



11058 Another Copy, wanting Tome I Partie I; loith 2 plates, 2 vols. 8vo. boards, uncut, QsQd 



' Deluc made very numerous experiments on the atmosphere ; inquiring into the modes of production of clouds, rain, 

 hail, dew, etc. ... He enunciated a point of the highest importance when he endeavoured to show that the amount of 

 water-vapour in the atmosphere, or in any closed vessel, is independent of the density of the air in any other gaseous sub- 

 stance in which it is diffused, a theory which was 8ub.sequently proved more clearly by John Dalton. '—iVo/. W. J. Hurrison. 



11059 Recherches sur les Modifications de I'Atmosphere, contenant I'Histoire critique 



du Barometre et du Thermometre, leur Construction et Usage, principalement a la Mesure des 

 Hauteurs, et h la Correction des Refractions Moyennes, nouvelle Edition ; with folding plates, 

 4 vols. 8vo. contemporary hf. calf extra, uncut {nice copy), lis Qd 1784 



The author's most important work, containing his invention of an hygrometer (based on the property of ivory 

 expanding or contracting by the amount of atmospheric moisture), his discovery that water reaches its greatest 

 density at 4° C, and his observations on thawing ice utilised by Dr. Black in his discovery of latent heat. He was the 

 discoverer of the 'dry pile', afterwards improved by Zamboni, and the first to give correct rules for measuring heights 

 by the barometer. 



11060 Second Paper on Hygrometry, with 3 copperplates by Basire, 2 parts 4to. (pp. 75)» 



sewn, 5s 1790-1 



11061 LXJDWIG [sive LUDOVTCI] (Daniel, m.d.) De Pharmacia, Moderno Seculo applicanda, 

 Dissertationes III, editio princeps, thick 18mo. sound copy in old white vellum {rare), lis 6d 



Gothce, 1671 

 ' Als Lehrbuch fur das wissenschaftliche Studium der pharmaceutischen Chemie schrieb der gothaische Leibarzt Daniel 

 Ludovici achon 1671 seine Phannacia, eins der besten und am meisten gebrauchten Apothekerblicher der damaligen 

 Zeit.'— //. Kopp. ' II eut le merite de debarrasser la pharmacie d'une foule de remedes inutiles.'— .Btogr. Gen. 

 The work was unknown to Poggendorff. 



37 



