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



12669 NICKL:^S (Franqois Joseph Jerome, Univ. Nancy) Sur I'AciDE Sulfurique Fluorifere 

 et sa Purification, 8vo. (pp. ^), sewn, \sU , , ^ , , , -r. [Nancy, 185JJ 



12670 Appareil pour servir a la DEMONSTRATION de la Theorie de la Flamme ; with plate, 



8vo. (pp. 4), sewn, \s 6d .. * ., 1^*^^^^^' ^^^V 



12671 — Sur I'IsoMORPHiSME des CoMBiNAisoNS Homologues: Analyse d'un Calcul de 



BOEUF: Recherches sur I'AiMANTATlON ; with plate— 3 pieces 8vo. in 1 (pp. 16), sewn, 

 2g [«;6.,1855] 



The Stone in the Ox was discovered by the Chef of the Hotel de France when cutting up kidneys. 



12672 Le Moteur des CoNVOis des Grands Tunnels, et en particulier du Tunnel bous- 



Marin; 8vo. (pp. 32), savn, 2s ^ . *^-' 1^58 



The author rejects electricity as well as steam, and proposes compressed air. 



12673 Presence de la Vivianite dans des Ossements Humains ; with plate, 8vo. (pp. 4), 



sewn, \s t*^'» 18^^} 



12674 '- Recherche du Fluor. AcTiONdesAciDESsurleVERRE,8vo.(pp.7)scM?w,ls6o? [i6.,1857] 



12675 Recherches sur la Diffusion du Fluor, Svg. (pp. 60), sewn, 2s M ib., 1858 



'Nickles fell a victim to the frightful action of anhydrous hydrofluoric acid in 1869.'— Pro/. E. v. Meyer. 



12676 NICOLAS (Pierre, s.J.) De Conchoidibus et Cissoidibus Exercitationes Geometricse; 

 with 4 folding plates : De LiNEis LOGARITHMICIS et SPIRALIBUS Hyperbolicis Exercitationes 

 Georaetricae ; ivith folding plate— 2 vols. sm. 4to. in 1, fine copy in old calf extra {rare), 15s 



Tolosas, 1897-6 

 • Tous ces morceaux sont doues d'une elegance charmante pour ceux qui ont encore quelque gout pour le style de la 



georaetrie ancienne, et qui n'en sont pas venus au point de desirer qu'on pCit demontrer les premieres propositions des 



elements par des equations algebriques.'— Afon-fwcZa. 

 ' Ouvrages remarquables.' — M. Marie. 



12677 NICOLSON (John Thomas, m.i.c.e., Univ. Manchester) Report on Experiments with 

 Rapid Cutting Steel Tools, made at the Manchester Municipal School of Technology, 

 under tlie Auspices of a Joint Committee of Members of the Manchester Association of 

 Engineers and the School of Technology Sub-Committee, together with Dr. Nicolson, with 16 

 folding plaUs, 8vo. sewn, 3s Qd Manchester, 1904 



12678 , and Dempster SMITH, a.m.i.mech.e. ; ibidem : Lathe Design for High- and Low- 

 Speed Steels : a Treatise on the Kinematical and Dynamical Principles governing the Con- 

 struction of Metal Turning Lathes, with Notes to guide the Purchaser in the Choice of a Tool, 

 and many Examples from Practice, with folding chart (in pocket), 17 plates, and 247 other illus- 

 trations, roy. 8vo. cl. {title stamped). Is 6g? (p. 18s nett) 1908 



12679 NIESTEN (L., Observatoire royal de Bruxellci) Note sur la Tache Rouge observee sur la 

 Planete Jupiter pendant les Oppositions de 1878 et de 1879 ; with coloured plate showing 6 

 drawings of Jupiter from 1665 to 1879, 8vo. (pp. 20), unbound, with author's inscr., 4s Qd 



Bruxelles, 1879 

 The fullest account ot the Great Red Spot on Jupiter, which first appeared in 187S, began to vanish in 1882, and has 

 now almost gone. 



12680 Observations sur I'Aspect Physique de la Planete Mars, pendant I'Opposition de 



1877; u-ith 5 plates containing 43 coloured illustrations, 4to. (pp. 22), seivn, with author's inscr., 

 58 ibid., 1878 



12681 A Propos de la Rotation de la Planete Venus ; with 2 plates, 8vo. (pp. 31), unbound, 



with author's inscr., 2s 6d ib., IS91 



12682 Recherches sur les Couleurs des Etoiles Doubles, 8vo. (pp. 21), unbound, 



2s ib., 1879 



12683 NIEXJPORT (Charles FranQois le Prud'homme d'Hailly, Vicomte de) Melanges 

 Mathematiques, ou Memoires sur differens Sujets de Math^matiques tant pures qu'appliquees ; 

 with 3 plates, 2 \., 1794-9: Memoire sur I'Integrabilite Mediate des Equations Differ- 

 ENTIELLES, d'un Ordre quelconque, et entre un Nombre quelconque de Variables, 1802 — 3 vols. 4to. 

 in 1, old hf. calf gilt, 12s 6d Bruxelles, 1794-1802 



12684 NIETJWENTYT (Bernard) Analysis Infinitorum, sen Curvilineorum Proprietates ex 

 Polygonorum Natura deductse ; unth 21 folding plates, 12mo. sound copy in old calf (rare), 

 15s Amstelcedami, 1695 



' L'auteur s'y efforce de remedier aux difficult^s qu'il avait trouvees dans le systeme des infiniinents petits.' — Biogr. Gen. 

 Nieuwentijt was the first who attacked Leibnitz's infinitesimals by ' asserting that tiy/dx stood for an unmeaning 

 quantity like %:—W. W. R. Ball. 



12685 The Religious Philosopher : or the Right Use of contemplating the Works of the 



Creator, I. in the wonderful Structure of Animal Bodies, II. in the no less wonderful Formation 

 of the Elements, III. in the most amazing Structure of the Heavens, etc. etc. etc., translated 

 by John Chamberlayne, f.r.s., with Letter to the Translator, by J. T. Desaguliers, pr. , f.r.s. ; 

 2nd Edition, with numerous folding copperplates, 3 vols. 8vo. contemporary calf {fine copy). 

 Is Gd 1729 



12686 NIFO \_Latine NIPHTJS] (Agostino) De AUGURiis Libri II, nee non de DiEBUS Criticis 

 Liber I, nunc denuo excusi ; his accesserunt Urania Divinatricis, quo ad Astrologise Generalia, 

 Libri II, jam primb in Luceni evolantes ; sm. 4to. old painted boards {browned throughout) ; rare, 

 15» Marpurgi, 1614 

 Probably the earliest work on ' critical days' meteorology. The author was the commentator on Aristotle's Metcorologica . 



12687 NISBET-LATTA (M., m.a.s.m.e.) Handbook of American Gas-Engineering Practice, 

 with over 100 illustrations, 8vo. cL, lOs 6d (p. 185 nett) 1907 



12688 NIXON (John) : Pioneer of the Steam ( oal Trade in South Wales: a Memoir, by James 

 Edmund Vincent, portrait, 8vo. cl., 4s (p. 10s 6d) 190O 



