HENRY SOTHEliAN & CO., 140, STRAND, W.C, and 37, PICCADILLY, W. 135 



2712 LUBY (Thomas, pr.. Fellow of T. C. D.) Compendium of Analytical Trigonometry, /oWwgr 

 plate, 8vo. hoards, 3* 6^ Dublin, 1834 



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



2713 LUC (Jean Andre de; f.k.s., reader to Queen Charlotte) Idees sur la M^TEOROLOGIE ; with 2 

 folding plates, 2 vols. 8vo. nice copy in contemporary mottled calf extra, 10s Qd 1787 



' Deluc made very nunierom experiments on the atinospliere, inquiring into the modes of production of clouds, rain, 

 liail, dew, etc. ... He enunciated a point of the Inghest im})ortance 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 subsequently proved more clearly by John Dalton. '—i^ro/. W. J. Harrison. 



2714 Recherches sur les Modifications de 1' Atmosphere, contenant I'Histoire critique du 



Baromfetre et du Tliermometre, leur Construction et Usage, principalenient a la mesure des 

 Hauteurs, et a la correction des Refractions Moyennes ; with folding plates on copper, 2 vols. 4to. 

 old brown calf extra [fine copy), \bs Geneve, 1772 



2715 Another Copy, contemporary brown calf gilt, witharms and initials o/King George III. 



in gold on »ides, Ms Qd 



the author's most important work, containing his discovery of the maximum density of water, his invention of an 

 hygrometer (based on the property of ivory expanding or contracting by the amount of atmospheric moisture), and his 

 observations on latent heat. He was the discovei-er of the ' dry pile ', afterwards improved by Zamboni, and the first to 

 give correct rules for measuring heights by the barometer. 



2716 LXJDLAM (William, pr.) Astronomical Observations made in St. John's College, 

 Cambridge, 1767-8, with Account of several Astronomical Instruments, with S folding plates 

 on copper, 4to. hf. calf gilt, with Sandhurst College bookplate (rare), 10s Cambridge, 1769 



At end are ' Problems relating to Peudulumsand Clock- Work ', and ' Two Papers relating to Mr. Harrison's Discoveries, 

 given in to the Boani of Longitude ', the author having been one of the three experts appointed by the board, to enquire 

 hito the merits of the latter's watch, 



• He enjoyed considerable reputation at the time for his skill in practical mechanics and astronomy, as well as for his 

 mathematical lectures.'— />. N. B. 



2717 The Rudiments of Mathematics, for Students at the Universities : containing an Intro- 

 duction to Al<i:ebra ; Remarks on the first VI Books of Euclid ; the Elements of Plain {sic} 

 Tri<^onometry, first edition, with ^folding plates, 8vo. hf bound. Is Qd Cambridge, 1785 



'It became a standard Cambridge text-book, passed through several editions, and was still in vogue in 1815.'— Z), }\. B. 



2718 LUFF (Arthur Pearson, m.d.), and Frederic James M. PAGE : Manual of Chemistry, 

 Inor<;anic and Organic, with Synopsis of the Conjoint Board and the Society of Apothecaries, 

 illustrated, 12mo. cL, Zs (p. 7s 6d) 1904 



2719 [LTJKIN (James, pr.)] The Amateur Mechanic's Workshop: includino^ Turning, Casting, 

 Forging, Brazing, Soldering, and Carpentry, by the Author of the ' Lathe and its Uses', 2nd Ed., 

 u'ith plates and woodcuts, 8vo. hf. bound, 3s 1872 



Halkett and Laing erroneously attribute the authorship to Elias Taylor. 



2720 LULLIUS (Raymundus ; ' Doctor Illuminatus ') Opera ea qure ad ad inventam ab ipso Artem 

 Universalem Scientiarum Artiumque omnium brevi compendio, lirmaque memoria apprehend- 

 aruni pertinent, ut et in eandem quorundam Interpretum Commentarii, hoc demum tempore 

 coniunctim emendatiora locupletioraq. non nihil edita sunt, editio princeps ; with ivoodcnts^ 

 thick 12mo. old parchment (rare), £2. 2s Argentime, 1598 



Raymond Lull was not only one of the most learned illustrations of the Franciscan Order, but one of the earliest of 

 mediaeval Christian missionaries (a.d, 1315). He is celebrated in a twofold capacity— that of the scholastic metaphysician, 

 and that of an experienced chemist. 



2721 Editio Secunda: accessit huic Editioni Valerii de Valeriis Patricii Veneti Aureum 



in Artem Lulli Generalem Opus ; ivith table, woodcuts, and diagrams {some ivith MOVABLE slips), 

 thick 8vo. sewn {a number of 11. browned, and wanting all after p. 786), 15s ibidem, 1617 



This edition is important for first containing Giordaxo Bruno's * De Lulliano Specierum Scrutiuio*, ' De Lampade 

 Combinatoria Lulliana'. and ' De Progressu Logicae Venationis '. They are all included in the above copy, which only 

 wants the commentary by Valerius and the index. 



2722 Ars Magna Generalis et Ultima, quaruracunque artium et scientiarum ipsius LuLLi 



assecutrix et clavigera et ad eas aditum faciliorem praebens: antehac nusquam arti impressoriae 

 emunctius comraendata et per M. Bernh. La Vinheta, artis illius fidelissimum interpretem 

 elimata ; handsomely printed in a small got^ic letter, ivith 4 woodcut figures and numerous pretty 

 initials, and vignette at end, sm. 4to. hf. vellum {wanting title, and wormed, hut otherwise a sound 

 and tall copy) ; RARE, £1. 1* Lugduni, Jacobus Marechal, sumptibus Simonis Vincent, 1517 



' His great work, wliich has so severely tested the sagacity of commentators. It is the development of tlie method of 

 teaching known subsequently as the ' LuUim method* (aftci wards revised and improved by Giordano Bri'no): a 

 mechanical aid to the mind in the acquisition of knowletige and the solution of all jKjssible problems by a systematic 

 manipulation of certain fundamental notions (the Aristotelian categories, etc.). He even invented a machine to assist in 

 this great task.' 



2723 LUMIERE ^LEOTRiaUE (La) : Journal Universel d'Electricit^ : Revue Scientifique 

 Illustree publiee sous la Direction scientifique de Th. DU MONCEL ; COMPLETE from the beginning 

 in 1879 to Dec. 1892 (Vols. 1-46), copiously illustrated, 46 vols. 4to., vv. 1-10 hf calf gilt, and the 

 rest sewn as issued (scarce), £8. 8s 1879-92 



2724 Another Set, from 1879 to 1883 (Vols. 1-10), illustrated, 10 vols. 4to. sewn, £1. Is 1879-83 



The most important French journal on the subject. It was continued in 1894 by ' Eclairage filectrique.' 



2725 LUNN (Jolin Robert, St. John's Coll., Cantab.) Of MOTION: an Elementary Treatise, 

 diagrayns, 8vo. cl., 3s 6c? Cambridge, 1859 



2726 LtJPKE (Robert) Elements of Electro-Chemistry, treated experimentally, trans, from the 

 2nd Ed. liy M. M. Pattison Muir, 54 woodcuts and diagrams, 8vo. cl., 3s Qd (p. 7* Qd) 1897 



2727 LUPTON (Sydney) Elementary Chemical Arithmetic, 12mo. cl., 2s (p. 4s Qd) 1882 



2728 LUTHER (G.) Construction and Equipment of Grain Magazines, ed. and trans, by F. 

 Stallmaier and Joseph Fux, 26 plates {U folding), and 116 woodcuts, roy. 8vo. boards, 3s Qd 

 (P- 7s Qd) Manchester, 1886 



