HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 741 



14797 [SECONDAT (Jean Baptiste Baron de)] Memoire sur I'Electricite ; with vignette on 

 title, 12mo. boards {rare), \Qs 6d 1746 



' C'est uue refutation de la theorie que I'abbe Nollet venait de donner de cette decoiiverte alors recente '.—Qu6rard. 

 There is no copy of this work in the Ronalds Library. 



14798 SEDGWICK (Adam, pr., F.R.S., Woodwardian Prof., Cantab.) Discourse on the Studies of 

 the University of Cambridge; 5th [last] Edition, with Additions, and Preliminary Dissertation 

 (pp. 442), thick post 8vo. cL, 6s 1850 



Containing much of geological interest and on the philosophy of science. 



14799 On the Physical Structure of those Formations which are immediately associated 



with the Primitive Ridge of Devonshire and Cornwall, roy. 4io. (pp. 59), sewti, 6s 



[Cambridge, 1822] 



His earliest and one of his most important papers on the Devonian Strata, in which, with the later ones, • tlie order of 



the rocks beneath the red sandstone was worked out, the stratigraphy of the Carboniferous deposits of the underlying 



Devonian system was gradually established, and some valuable contributions were made to the history of the various 



crystalline masses in Devon and Cornwall.' — D. X. B. 



14800 , and Sir Roderick Imp eyMURCHISON, f.r.s.: On the Structure and Relations 



of the Deposits contained between the Primary Rocks, and the Oolitic Series in the North 

 of Scotland, with 4 plates (1 folding and coloured), and geological map, 4to. (pp. 37), sewn, 

 4s 1828 



'Thomas Allan, Esq. [f.b.s,] from the Authors.'— Inscr. onjlrst leaf. 



14801 : Clark (John Willis, Trinity Coll., Cantab.), and Thomas McKenny Hughes ; F.R.S. , 



Woodwardian Prof. : The Life and Letters of Adam Sedgwick [with Bibliography (pp. 14)] , 



portraits, plates, woodcuts, and coloured maps, 2 thick vols. Svo. cl. {o. p.), \2s (p. £1. 16s) 



Univ. Press, Cambridge, 1890 



14802 SEDGWICK (Lt.-Col. W., R.E.) ARGON and Newton : a Realisation, with woodcuts, 8vo. 

 cl.,^s 1890 



Containing much speculation on the form of atoms and molecules, the constitution of matter, etc. 



14803 Light the Dominant Force of the Universe, showing by Means of Experiments what 



Light is ; what Electricity is ; and what Life is ; also how to reconcile Religion and Science, cr. 

 Svo. cl. (o. p.), 4.? (p. 75 6//) 1882 



The author attempts to explain the relation between matter and energy, the nature of electricity, the formation of 

 crystals, and other matters still considered unknown by the orthodox scientist. Light, according to him, represents 

 'compnlsivt* ' and heat ' repulsive force.' 



14804 SEGUIEB (Armand Pierre Baron, de VInstitut) Perfectionnements dans la Navigation 

 A Vapeur : Exposition d'un nouveau Mode de Construction Navale en Fer et Bois combines ; 

 Description d'une Mature Mobile et d'une Roue a Palettes Pivotantes snivant le Royon, 

 appropriees a la Navigation Mixte par le Vent et la Vapeur ; Plan du Nouveau Systeme realist a 

 Bord de la Goiilette a Vapeur la Perseverance, experiment^e en Presence de I'Academie des 

 Sciences ; ivith ^folding plates, 4to. hf. calf {loose in cover), Qs Qd 1848 



14805 [SEGUIN aine (Charles, Ingenieur des Pants et Chaussees)] Memoire sur le Chemin de Fer 

 de St.-ETIENNE ti Lyon, par Saint-Chamond, Rive-de-Gier, et Givors ; with folding map, 4to. 

 (pp. 28), sewn (rare), 10s 6d 1826 



This mineral line was one of the very earliest railways in France. 



14806 Des PONTS en Fil de Fer, premiere edition ; with 7 folding plates, Svo. sewn, with 



inscr. to George Bennie, F.B S., as below, 7s 6d 1824 



' Offert par I'auteur a Monsieur Qe Rennie. Sequin.'— Insc?-. on flyleaf. 



14807 Seconde [DERNiicRE] EDITION; ivith i folding pltttes, Uo.' hf. calf gilt {back rubbed), 



with author's inscr. to Sir John Rennie, F.R.S., lOs 6d 1826 



Containing numerous experiments on the resistance of iron wire. ' Les experiences de M. Seguin ont prouve d'une 

 manifeie incontestable que la coherence du til de fer est plus grande que celle du fer en barre. Son projet de substituer 

 des cables ou faisoeaux de fil de fer a des chatnes ou a des barres de ce metal pour la suspension des ponts, est done 

 sufflsamment motive.' — Rapport de I'Academie des Sciences. 



Bound up with the above copy is : Du Mouvementdes Ondes et des Travaux Hydrauliques Maritimes, par A. R. Emy, 

 Colonel du Genie, 1S31. 



14808 SEGUIN aine (Marc, de VInstitut) Considerations sur les Lois qui president a I'Accom- 

 plis.senient des Phenomenes Naturels rapportes a I'Attraction Newtonienne, et bashes sur la 

 Synthese des Actions Moldculaires exposee dans les M^moires publi(^'s jusqu'ici ; with folding plate 

 and 2 diagrams, roy. 8vo. sewn, 3^ 1861 



14809 be riNFLUENCE des Chemins de Fer, et de I'Art de les tracer etde les construire ; with 



6 folding plates, Svo. hf. caZ/" (SCARCE), £1. Is 1839 



' The celebrated MontgoUier entertained the idea of the equivalence of heat and mechanical work ; and the idea has been 

 developed by his nei)hew M. Seguin, in his work De V Influence d(s Chemins de Fer, printed in 1S30.'— Prof. Tyndall. Based 

 thereon it was claimed that the author discovered the principle of tlie conservation of energy. 



14810 , Memoire sur les Causes et sur les Effets de la Chaleur, de la Lumiere et de 



IElectricite, roy. Svo. sewn, 3s 1865 



14811 SELDEN (Joseph) The Trades-Man's Help: an Introduction to Arithmetick, both 

 Vulgar, Decimal, and Instrumental, with the Use of a New Instrument, called the Jointed 

 Sliding-Rule ; and also a Perpetual Almanack, shewing the day of the Month, change of the 

 Moon, etc., with Directions for making Bonds, Bills, Wills, and other Things of Note, 16mo. 

 contemporary sheep, £1. Is /^rtw^erj^ /or the author, and sold by him at Tunbridge- Wells, 1694 



Rare, and unknown to Prof, de Morgan and Lowndes. ' As for the Sliding-Rule . . . none as yet have so compos'd it, 

 as that it may be useful for the intention for which a Sliding-Rule is neces.sary. . . . Therefore I directed my Thoughts 

 to the composing of it ; so that it might be convenient both for taking the Dimensions, and also to work by.'— Address to 

 tlie Render. ' 



14812 SELLE (Albert de) CouRS de Min^ralogie et de Geologie, Tome pr : Phenomenes actuels. 

 MiNiiRALOGiE ; with Atlas, containing 960 figures on 147 plates, 2 vols. roy. Svo. in 1, hf. morocco 

 gilt (scarce), 10s ' 1878 



49 



