HENKY SOTHERAN & 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, with 2 folding plates, 8vo. contemporary 

 hf. calf (rare), 15s 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 

 yther. 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 which the 

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

 copperplates, 8vo. boards, uncut (RARE), J5s ibidem, 1766 



With long list of subscribers, including Dr. Priestley, Abraham Bennet, F.R.S., etc. etc. 



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

 Worcester Cathedral for 58 years till his death in 1780. He was an early dabbler in medical electricity, and advertised 

 himself as able to effect cures of the throat by its use; but he only got budgetted for his pains by Professor de Morgan 

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

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



11050 LOWELL (Percival, Director Lowell Observatory, Flagstaff, Ariz.} MARS, with 24 plates, 

 and 3 smaller illustrations, 8vo. cl. (a number of II. and plates loose], 6s (p. 12s 6^) 1896 



11051 SECOND EDITION, with 26 plates, and 3 other illustrations, 8vo. cl., uncut, t. e. g. (o. p.), 



Is 6d 1896 



11052 LOWIG (Carl Jacob; Univ. Breslau), und Matthias Eduard SCHWEIZER: Uber 

 STIBAETHYL, ein neues ANTIMONHALTIGES, ORGANISCHES RADICAL, 3 parts 8vo. (pp. 48), sewn, 

 4s 6d Zurich, 1850 



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



11053 LOWBY (Thomas Martin, F.C.S.) STUDIES of the TERPENES and Allied Compounds. 

 NITROCAMPHOR and its DERIVATIVES, 8vo. (pp. 21), sewn, Is 1898 



11054 LOYS de CHESEATJX (Jean Philippe, de VAcademie des Sciences] MEMOIRES POSTHUMES 

 sur Divers Sujets, d'AsTRONOMiE et de MATHEMATIQUES, avec de nouvelles TABLES tres- 

 exactes, des rnoyens Mouvemens du SOLEIL et de la LUNE ; with 4 folding copperplates, 4to. 

 contemporary boards, uncut, ivith auto, of L. C. Bouvier, 10s 6d Lausanne, 1754 



Including ' Probleme sur 1'oscillation du pendule dans un arc de cercle ': ' Sur les Satellites en general, et sur ceu,x du 

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



11055 LUBBOCK (Sir John William ; banker and astronomer ; V.P.R.S. ; Lord Avebury's father) 

 ACCOUNT of the ' TRAITE sur le FLUX et le REFLUX de la MER ' of DANIEL BERNOULLI ; and 

 TREATISE on the ATTRACTION of ELLIPSOIDS, with diagrams, 8vo. (pp. 55), sewn, 4s 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 6d 1835 



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

 showed the former in piloting the family bank through the bad panics of 1847 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 , No. 2711 ante] in 1S30, which a binder's blunder caused to ba often 

 attributed to De Morgan, despite his frequent disclaimers.' Miss Agnes M. Clerke. 



11057 LUC (Jean Andre de, F.R.S. ; reader to Queen Charlotte) IDEES sur la METEOROLOGIE ; 

 with 2 folding plates, 2 vols. 8vo. nice copy in contemporary French calf extra (SCARCE), 

 18s 6d 1787 



11058 ANOTHER COPY, wanting Tome I Partie I; with 2 plates, 2 vols. 8vo. boards, uncut, 6s 6d 



' 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 



st 

 11059 



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), 17s 6d 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 LUDWIG [sive LUDOVICI] (Daniel, M.D.) De PHARMACIA, Moderno Seculo applicanda, 

 Dissertationes III, editio princeps, thick 18mo. sound copy in old white vellum (rare). 17s 6d 



Gotham, 1671 



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

 Ludovici schon 1671 seine Pharmacia, ems der besten und am meisten gebrauchten Apothekerbiicher der damaligen 

 Zeit.' H. Kopp. ' II cut le merite de debarrasser la pharmacie d'une foule de remedes inutiles.' Biogr. Gen. 

 The work was unknown to Poggendorff. 



37 



