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



12752 NORTHCOTT (William Henry, m.i.mech.e.) The Theory and Action of the Steam Engine 

 (for Practical Men), with 29 woodcuts, and Z folding tables, 8vo. cl., 2s 6d (p. 7* 6^) [1877] 



12753 Seventh Edition, loith 29 woodcuts, and S folding tables, 8vo. cl.. 3s (p. 7* 6d) [1889] 



12754 Treatise on Lathes and Turning, Simple, Mechanical, and Ornamental, with 239 



woodcuts {including many plates), 8vo. cl., Qs (p. 18s) 1868 



12755 Second [last] Edition [enlarged], with 338 illustrations [including many plates), 8vo. 



cl. (o. p.), 95 (p. 185) 1876 



12756 NORTON (Robert, one of his Maiesties Gunners and Enginiers) The Gunner : shewing the 

 whole Practise of Artillery : with all the Appurtenances thereunto belonging. Together with 

 the Making of extraordinarie Artificiall Fire-works, as well for Pleasure and Triumphes, as 

 for Warre and Seruice, ^vith title within woodcut borders, 37 copperplates [mostly folding), and 

 numerous good woodcuts, folio, original rough calf [blank corner torn off one I. , and a worm- 

 hole through margin of some II., otherivise a fine and crisp copy), with fine old bookplate of Sir 

 John Cope, Bart, (very rare), £10. 10* A. M.for Humphrey Robinson, 1628 



The above is important as the first great English work on artillery, and valuable for the copious and minute descrip- 

 tions and illustrations of contemporary ordnance. 



In his Epistle to the Reader the author asserts that his book is an original one, and not a translation from Diego 

 Ufano's Artillerie, although most of the plates were taken from this work, as published in Frankfort in 1621. He com- 

 plains in the dedication to Charles I. that ' my wrongs and discouragements hath hitherto hindred the publication ' 

 of the work. 



Among the complimentary verses is one by Captain John Smith, President of Virginia, who signs himself ' Hungari- 

 ensis ', in remembrance of his taking part (in the Austrian army) in the Hungarian war against the Turks. 



'Sir John Cope Bart.' is not identical with Lt.-Gen. Sir John Cope ('Johnnie Cope'), who was defeated by Prince 

 Charles Edward at Prestonpans. 



12757 The Gunners Dialogue, with the Art of Great Artillery, with diagram of ballistic 



curveSf sm. 4to., blacfe letter ; sewn [tvater-stained, but in sound condition) ; rare, £1. 5s 



printed in the yeare, 1643 

 This work is numbered from page 71 to 92, with a title and dedication to the Duke of Buckingham. It was published 



with W. Bourne's * Art of Shooting ', 1643, but appears to have also been issued separately. 



In the dedication to the second Duke of Buckingham (' Zimri ') the author complains of the ' penury of expert gunners 



and understanding men, and the weaknesse of the present meanes to breed more hereafter '. 



Neither of the above important works was known to Lowndes, who only mentions the author's ' Mathematical 



Appendix' (1604). 



12758 NORWICKI (R.), und Hans MAYER : Flussige Luft : die Verflussigungsmethoden 

 der Gase und die neueren Experimente auf dem Gebiete der fiiissigen Luft, 2. erweiterte Auflage ; 

 with 48 woodcuts, roy. 8vo. seivn. Is Qd Mdhr.-Ostrau, 1906 



12759 NUISEMENT (— Sieur de, Eeceveur General au Comte de Ligny en Barrois) Traittez du 

 Vray Sel, Secret des Philosophes, et de 1' Esprit General du Monde, contenant en son Interieur 

 les trois Principes Naturels, selon la Doctrine de Hermes: Oeuvre tres-utile et necessaire a 

 quiconque desire arriver a la parfaitte Prattique de ce pretieux Elixir ou Medecine Universelle, 

 tant celebree des Anciens, recogneuii et experimentee [blank margin of some II. wormed), 1621: 

 Poeme Philosophic de la Verite de la Phisique Mineralle, on sont refutees les Obiections 

 que peuuent faire les Incredules et Ennemis de cet Art, auquel est naifuement et veritablement 

 depeinte la vraye Matiere des Philosophes, '20—2 vols. 12mo. in 1, old limp vellum [somewhat 

 v)ater- stained, but a sound copy) ; RARE, £1. 5s leremie Perier et Abdias Bvizard, 1621-20 

 Unknown , to Brunei, Poggendorff, orEbert, nor mentioned by Koppand Waite. Nothing seems to be known of itsauthor. 



12760 NYREN (Magrnus; Observatoire de Pulkowa) L' Aberration des Etoiles Fixes, 4to. 

 (pp. 47), sewn, Zs 6d St. Petersbourg, 1883 



' An elaborate investigation of the small annular displacements of the stars due to the successive transmission'of light, 

 involving an increase of Struve's ' constant of aberration ' from 20-445" to 20 492". From the new value . . . was derived 

 a valuable approximation to the sun's distance, concluded at fl2,905,021 miles (parallax = 8-794").— Miss Agnes Jf. Gierke. 



12761 Zur ABEPtRATiON der Fixsterne, Svo. (pp. 13), unbound. Is ibidem, 1888 



12762 Das Aequinoctium fiir 1865,0, abgeleitet aus den am Passageinstrumente und am 



Vertikalkreise in den Jahren 1861-70 in Pulkowa angestellten Sonnenbeobachtungen, 4to.(pp. 34), 

 sewn, 2s ih., 1876 



12763 Bestimmung der Nutation der Erdachse, 4to. (pp. 64), seicn, 2s 6d ib., 1872 



12764 Declinaisons Moyennes des Etoiles Principales pour I'Epoque 1885.0, deduites des 



Observations faites au Cercle Vertical de Poulkovo, 1882-91, atlas 4to. (pp. 25), sewn, with 

 author's inscr., os ih., 1893 



12765 Die Polhohe von Pulkowa, roy. 4to. (pp. 40), sewn, 3s ib., 1873 



In this memoir the author first proves that the polar height of a place is not invariable. 



12766 Variations de la Latitude de Poulkovo observees au Grand Cercle Vertical dans les 



Anndes 18S2-91 ; with 2 plates, sm. folio, sewn, 2s 6d [ib., 1893] 



12767 NYSTROM (John W., ce.) New Treatise on Steam Engineering, Physical Properties 

 of Permanent Gases, and different Kinds of Vapor, with 5 illustrations, 8vo. hf. morocco neat, 

 4* . . Philadelphia, 1876 



' Furnishmg a variety of matters pertaining to steam engineering which appear to be wanting in that profession, and 

 which have hitherto not been published.'— Pre/uce. 



12768 Treatise on Screw Propellers and their Steam-Engines, with Practical Rules and 



Examples how to calculate and construct the same for any Description of Vessels ; with Treatise 

 on Bodies in Motion in Fluid, exemplified for Propellers and Vessels ; and Description of a 

 Calculating Machine, with 32 plates [including a Pitch Table with movable slip), and woodcuts, 

 8vo. cl.. Is 6d Philadelphia, 1852 



Written at a period when the paddle-wheel was still the more efficient agent, for ' were we to decide from the present 

 aspect of public opinion [in America I, we would be almost compelled to say screw-propellers are on the wane '. The work 

 contains original investigations and foruiulse, and a description of a 'centripetal screw propeller' and a ' propeller engine' 

 patented by Loper and Nystrom. By the Calculating Machine also described the author effected all the calculations in 

 the work. 



