HENKY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 619 



12434 NEUBERQ- (Joseph, Univ. Licqe) M^moire snr le Tetraedre, 8vo. seion, with inscr. to 

 Samuel Roberts, F.R.S„ and numerotis MS. notes by the latter, 2s 6d Bruxelles, 1884 



12t35 Sur le Point de Steiner, 8vo. sewn, with inscr. to the same. Is 1886 



12436 Sur les Projections et Contre-Projections d'un Triangle Fixe, et sur le Systeme 



de Trois Figures directement Semblables ; n-ith diagrams, 8vo. sewn, with inscr. to the same, 2s 



Bruxelles, 1890 



12437 Sur le Quadrilatere Harmonique ; with 3 diagrams : Sur le Point de Tarry- roy. 



Kvo, (pp. 23), sewn, with inscr. to the same. Is 6d s. I. ni d. 



12435 Sur QuELQUES Systemes de TiGES Articulees : Trac^ Mecanique des Lignes ; ivith 



2 folding plates, roy. 8vo. (pp. 48), sewn, 2s 6rf Liege, 1886 



Containing an interestins historical account of drawing lines by link motion. 



12439 Sur les Tetraedres de MoBlUS, 8vo. (pp. 14), sewn, with inscr. to S. Roberts, F.R.S., 



\s ad Bruxelles, 1884 



12440 Sur les Tangentes Communes i\ un Cercle et a una Conique, Svo. (pp. 18), sewii, with 



inscr. to the same. Is 1885 



12441 , et Antoine GOB : Sur les Axes de Steiner et I'Hyperbole de Kiepert : Sur les 



Foyers de Steiner d'un Triangle; with 11 diagrams, roy. Svo. sewn. Is 6d [1890] 



12442 NEUMANN (Carl Gottfried ; Univ. Leipzig) Allgemeine Untersuchungen iiber das 

 Xevvton'sche Princip der Fernwirkungen, niit besonderer Riicksicht auf die elektriscben 

 Wirkungeu, roy. 8vo. sewn, 6s (p. M. 10) Leipzig, 1896 



12443 Ueber die Entwickelung einer Function mit imaginiirem Argument nach den 



Kegelfunctionen erster und zweiter Art. 8vo. (pp. 14), sewn, \s Halle, 1862 



12444 Ueber die nach Kreis-, Kugel- und Cylinder- FuNCTiONEN fortschreitenden 



Entwickelungen, unter durcligiingiger Anwendung des du Bois-Reyniond'schen Mittelwerth- 

 satzes, 4to. hf. cl., 4* Qd (p. M. t. 20 sewn) Leipzig, 1881 



12445 Die Magnetische Drehung der Polarisationsebene des Lichtes : Verauch einer 



niathematih'chen Theorie ; with diagrams, Svo. sewn, Zs Qd Halle, 1863 



iJHveloping James McCullaph's diflerential equations on the theory of polarisation and the luminiferous ether 

 (r. Sn. 11164 an/e). 



12446 liber die Methode des ARITHMETISCHEN Mittels; with diagrams, 2 vols, large impl. 



Svo. seivn, 6s (p. M. 9.20) Leipzig, 1887-8 



12447 Untersuchungen iiber das logarithmisciie und Newton'sche Potential ; with 



diagrams, Svo. sewn, 6s (p. M. 10) ibid., 1877 



Containing the investigations which madft the author the founder of the logarithmic potential. 



12448 Vorlesungen iiber Riemann's Theorie der Abel'schen Integrale, 2. [neueste] 



voUsttindig unigearbeitete Aufiage ; with plate and diagrams, roy. Svo. sewn, 7s 6d (p. M. 12) 



ib., 1884 



12449 NEUMANN (Franz Ernst; Univ. Konigsberg, F.R.S. ; father of the above) Beitrvge zur 

 Krystallonomie; urith 12 folding plates, Svo. boards (scarce), \0s 6d Berlin, 1823 



The author introduces in this work linear and spherical projection in crystallography. He was also the founder of 

 the crystallographic theory of deformation. 



12450 Die MATHEMATISCHEN GESETZE der INDUCIRTEN elektrischen Strome, 4to. (pp. 87) 



sewn (scarce), 6s 6d ibid., 1846 



The lirst of the author's two important publications on the laws of induced electricity. A copious account of the 

 above is given in Hoppe's fesc/i. d, ElektrizUii.t, pp. 43.S-4»j. 



12451 Vorlesungen iiber die Theorie der Elasticitat der festen Korper und des 



Lichtathers, herausgegeben von OSKAR Emil Meyer; with diagrams, roy. Svo. hf. morocco 

 gilt, 8s 6d (p. M. 11.60 unbound) Leipzig, 1885 



12452 NEUMANN (Kaspar; Berlin, F.R.S.) Chemical Works, abridged and methodized, with 

 large Additions, containing the later Discoveries and Improvements, by William Lewis, f.r.s., 

 2nd Edition, 2 vols. Svo. old calf, 10s 6d 1773 



An epitome of the cheinical knowledge of the time, and interesting for elaborating Stahl's phlogiston theory, of which 

 the a'lthor was one of the foremost adherents. 



12453 NEVILLE (John, c.e., m.r.i.a.) Hydraulic Tables, Coefficients, and Formulje, for 

 finding the Discharge of Water from Orifices, Notches, Weirs, Pipes, and Rivers, ivith 44 

 woodcuts, Svo. cl., 3s 6d 1853 



12454 Second Edition, with extensive Additions, New Formuhe, Tables, and General 



Information on Rain Fall, Catchment-Basins, Drainage, Sewerage, and Water Supply for Towns 

 and Mill Power, with 46 woodcuts, Svo. cl., 6s 6d 1860-1 



12455 NEW JERSEY, GEOLOGICAL Survey of: Annual Report of the State Geologist for 

 1880, unth 2 coloured maps (\ folding in pocket), Svo. boards, Zs Trenton, N.J., 1880 



12456 NEW YORK, Inquiry into the Conditions relating to the Water-Supply of the City of, 

 by the Merchants' Association of Nenv York, with numerous plans, maps and charts [many 

 folding), thick Svo. cl.. Is 6d [New York, 1900) 



Including reports by J. J. R. Croes, L. B. Ward, Fo.ster Crowell, J. H. Fuertes, and G. W. Rafter. 



12457 NEW ZEALAND, Report on the Mining Industry of: Papers laid before Parliament 

 during the Session of 1886, with 4 plates (2 folding), large post Svo. cl., 4* 6d Wellington, 1887 



12458 NEWBIGGING (Thomas, m.i.c.e.) The Gas Manager's Handbook: Tables, Rules, and 

 Useful Information, Svo. hf. roan (binding badly rubbed), 2s 1870 



12459 Handbook for Gas Engineers and Managers, 5th Edition [greatly enlarged and 



rewritten], with 193 woodcuts, sq. cr. Svo. hf. calf, 4* 1889 



12460 Eighth [latest] Edition [enlarged], with fine portrait of W. Murdock, and 217 



illustrations, sq. large cr. Svo. leather, g. e.. Vis 6d (p. 18* nett) 19ia 



