752 HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 



14999 SPOTTISWOODE (William; P.K.S., Queen's Printer) ELEMENTARY THEOREMS relating to 

 DETERMINANTS, 4to. (pp. 71), sewn (scarce), Is Qd 1851 



' He was the author in 1851 [act. 26] of the first elementary treatise on determinants, and to this treatise much of the 

 rapid development of that subject is attributable.' D. N. B. 



15000 On the FORTY-EIGHT COORDINATES of a CUBIC CURVE in SPACE, 4to. (pp.12), seivn, 2s 1881 



15001 - MANUSCRIPT COLLECTION, consisting of 397 leaves or pages of Manuscript, 

 chiefly in his own AUTOGRAPH, of PAPERS, LECTURE NOTES, PROBLEMS, etc., illustrated with 

 diagrams, 4 vols. folio, 3 vv. hf. roan, and 1 v. hf. bound (damaged), all with the author's book- 

 plate, also interesting 8 pp. AUTO. LETTER to J. G. Shaw Lefevre (4 pp. copied) inserted, 3. 3s v. d. 



Comprising : Theory of Light, especially Polarisation (pp. 89) : Analytical Problems (pp. 141) : Integral Calculus. 

 Examples (pp. 34) : Irrational Functions (pp. 24) : On Sir W. R. Hamilton's Theory of Quaternions (pp. 7) : On the Trans- 

 formation of Couples and Moments (pp. 15) : On Motion of Rotation (pp. 7): On the Difference between Pure and Empirical 

 Composition (pp. 12) : Of Time ; Matter ; Motion ; and Force (pp. 48), and some other Physical Problems. 



15002 POLARISATION of LIGHT, first edition, with 2 coloured plates and 29 woodcuts, cr. 8vo. 



cl. (scarce), 3s Qd 1874 



15003 SECOND EDITION [unchanged], with 2 coloured plates and 29 woodcuts, cr. 8vo. cl., 



3s Qd 1876 



15004 THIRD EDITION [enlarged], with 2 coloured plates and 31 woodcuts, cr. 8vo. cl. y with 



auto. ofF. J. Jervis- Smith, pr., F.R.S., 5s 1879 



15005 SPBJETSON" (N. E.) PRACTICAL TREATISE on CASTING and FOUNDING: including Descriptions 

 of the Modern Machinery employed in the Art; 6th Edition, with 82 plates (many Jolding), thick 

 8vo. cl. (o.p.), 7s Qd (p. 18s) 1892 



15006 SPUBB (Josiah Edward) The IRON-BEARING ROCKS of the MESABI RANGE in MINNESOTA, 

 with 12 plates (3 coloured), besides woodcuts, roy. 8vo. cl., 5s Minneapolis, 1894 



15007 STAHL (Conrad Diedrich. Martin; Univ. Munich) GRUNDRISS der COMBINATIONSLEHRE, 

 nebst Anwendung derselben auf die Analysis ; with 2 folding tables, 8vo. boards, 3s Jena, 1800 



15008 STAHL (Georg Ernst; Univ. Halle, originator of the phlogiston theory) EXPERIMENT A, 

 OBSERVATIONES, ANIMADVERSIONES, ccc NUMERO, CHYMKLE et PHYSICS, qualium alibi vel 

 nulla, vel rara, nusquam autem Fatis ampla, ad debitos Nexus, et veros Usus, deducta Mentio, 

 Commemoratio, aut Explicatio, invenitur ; qualium partim, in aliis Autoris scriptis, varia Mentio 

 facta habetur ; partim autem nova Commemoratio hoc Tractatu exhibetur: utrimque vero, uni- 

 versa Res uberius explicatur atque conh'rmatur, large 12mo. sewn, Is Qd Berolini, 1731 



15C09 - FUNDAMENTA CiiYMlAE DoGMATiCAE et EXPERIMENTALIS, et quidem turn communions 

 Physicse Mechanics Pharmaceutics ac Medicae, turn sublimioris sic Dictae Hermeticte atque 

 AlchymisB, olim in privates Auditorum Usus posita, jam vero Indultu Autoris publicse Luci 

 exposita ; annexus est Tractatus ISAACI HOLLANDI de SALIBUS et OLEIS METALLORUM ; editio 

 princeps, sm. 4to. old calf gilt (fine copy), 15s Norimbergae, 1723 



' II y etablit 1' existence de son phlogistique comme principe.' Biogr. Gen. See BECHER (No. 303), ante. 



15010 TRAITE des SELS, dans lequel on demontre qu'ils sont composes d'une Terre Subtile, 



intimement combinee avec de 1'Eau, traduit de 1'Allemand, 12mo. nice copy in old English calf, 

 with Calgarth Park booklabel of Richard Watson. F.R.S., absentee Bp. of Llandaff (1737-1816), 

 7s Qd 1771 



15011 STANHOPE (Charles 3rd Earl, F.R.S., when Viscount Mahon) PRINCIPLES of ELECTRICITY, 

 containing divers NEW THEOREMS and EXPERIMENTS, with an Analysis of the superior Advan- 

 tages of high and pointed [LIGHTNING] CONDUCTORS ; also an EXPLANATION of an ELECTRICAL 

 RETURNING STROKE, by which FATAL EFFECTS may be produced, even at a vast Distance from 

 the Place where the Lightning falls, with 6 copperplates, 4to. old calf (slightly soiled and binding 

 damaged) ; RARE, 1. 5? 1779 



15012 PRINCIPES d'ELECTRiciTE, contenant plusieurs Theoremes appuyeX par des Experiences 



nouvelles, avec une Analyse des Avantages superieurs des CONDUCTEURS ELEVES et POINTUS. 

 On explique de plus le CHOC ELECTRIQUE en RETOUR, par lequel des Effets funestes peuvent etre 

 produits a une tres-grande Distance de VEndroit oil le Toimerre tombe. Ouvrage traduit par 

 1'ABBE [JEAN ANTOINE] N[OLLET], F.R.S., avec certaines Notes interessantes et propres a con- 

 firmer les Principes nouveaux de 1'illustre Auteur ; with 6 folding plates and table, 8vo. contemp- 

 orary calf extra, 10s Qd 1781 

 Earl Stanhope was the first to make known the principle of the return stroke of lightning. ' He contended that when 

 a large cloud is charged with electricity it drives out a considerable portioa of the electricity in its neighbourhood, which 

 often returns to its original position with such violence and in such quantity as to destroy life.' W. P. Courtney. 



15013 PRINCIPLES of the SCIENCE of TUNING INSTRUMENTS with FIXED TONES, Stereotype 



Edition, 8vo. (pp. 24), sewn, with inscrr. 'From the author' and l R\ich*rd Watson, F.R.S., 

 [absentee'] Bp. of] Landaff' on title (rare), 12s Qd A. Wilson, 1806 



This copy was worked off at the iron printing press of the second construction invented by Earl Stanhope.' Inscr. on flyleaf. 



'The invention [supra] formed the subject of numerous articles by John Farey and Stanhope in the 'Philosophical 

 Magazine ' [where the work had been reprinted], and Dr. Calcott's ' Plain Statement of Earl Stanhope's Temperament.' 

 He perfected a process of stereotyping which was acquired by the delegates of the Clarendon Press at Oxford in 1805 

 on the condition that they paid 4,000. to the foreman and manager of his press, Andrew Wilson, and stereotyping on this 

 system became part of the general business of the press.' D. N. B. 



15014 - REMARKS on MR. BRYDONE'S ACCOUNT of a REMARKABLE THUNDER-STORM in SCOT- 

 LAND, with folding copperplate by Basire, 4to. (pp. 23), sewn, 5s Qd 1787 



A further illustration of the principle of the return stroke of lightning. 



15015 : HARLEY (Robert, pr., F.R.s.) The STANHOPE DEMONSTRATOR: an Instrument for 



performing Logical Operations, with 4 illustrations, 8vo. (pp. 21), sewn, with inscr. to Samuel 

 Roberts, F.R.S., 2s Qd 1879 



' In none of the accounts which have appeared of his scientific labours can we find any allusion to his researches on this 

 subject or to the curious contrivance which he called the ' Demonstrator '.'P. 1. 



