HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 721i 



14415 ROLLMANN (Wilhelm) Die Thermoelektricitat, I. Theil, 4to. (pp. 38), sewn, 2s 6d 



Strahvnd, 1859- 



14416 ROMAIN [AicBOMANUSJ (Adrien, Univ. Wiirzhurg) Pyrotechnia, hoc est, de Ignibus- 

 Festivis, Jocosis, Artilicialibus et Seriis, variisque eorum Structuris Libri II, ex Scriptoribus 

 Latinis, Italis, et Germanis colleeti, et in Methodiim succinctam redacti; with vignette on title, and 

 numerous woodcuts, sm. Ato. figured boards (very RARE),£1. 10^ [s. /.], in Officina Paltheniana, 1611 



a very rare and curious work which was unknown to the author's biographer in Biogr. Generalc. He also wrote a 

 number of mathematical works, yet was wholly unknown to Poggendortt". 



14417 ROMil de I'ISLE (Jean Baptiste Louis) L" Action du Feu Central demontr^e nullr 

 5\ la Surface du Globe, contre les Assertions de MM. le Comte de Buffon, Bailly, de 

 Mairan, etc. , 2e Edition, an«5mentee de nouvelles Preuves et de plusieurs Eclaircissemens, 8vo. 

 (pp. 132), unbound (rare), 10* 6c? Stockholm, 1781 



' Une critique sage et niodtree de la Th6orle de la Terre par BuHon, qui rendit lui-nieine justice a V&utem.'—Qvirard. 



14418 Essai de Cristallographie, on Description des Figures G^ometriques, propres h 



ditterens Corps du Regne Mineral, connu.s vulgairenient sous le Noni de Cristaux; with 10 



folding plates [the figures cut up, and parted carefully to the passages they belong to), 8vo. contem- 

 porary French mottled calf (back slightly damaged) ; rare, 12* 6rf 1772 

 Tills important work first demon.strated the law of constancy of angles in crystallography. 



14419 ROMME (Charles) L'Art de la Marine, ou Principes et Pr^ceptes Generaux de I'Art de 

 construire, d'ariaer, de mantuuvrer et de construire des Vaisseaux ; with 8 folding copperplates^ 

 4to. old calf gilt, Ms 6d 1787 



' Ouvrage fort estime des navigateurs. '—Queran^ ' M. Romine d^duit aussi un phenomene imiMjrtant, c'est I'influcnce 

 dc la fiirme de Tairiere sur la resistance de I'avant.' — Ijxlande. 



'C'est un des savants qui ont le plus contribue aux \irogr(S de la navigation dans le ISme siecle.'— /Ii0(/r. (Jen. 



14420 RONALDS (Sir Francis, f.r.s. ; inventor, in 1816, of the electric telegraph) Descriptions of 

 an Electrical Telegraph, and of some other Electrical Apparatus, 2nd Edition [with Preface], 

 with 4 plates (one folding) of the installation and the electrical apparatus used, 8vo. cl. (SCARCE), 

 125 6rf 1871 



This work contains the account of the electric telegraph invented by the author, which transmitted signals from hi» 

 house at Hammersmith (occupied later on by William Morris, the poet, and known as 'Kelmscott House ') over a system 

 of wires S nniles long, by observing at one end the divergence of a pair of pith balls when a charge of electricity was sent 

 into the other. 



' Ronalds's instrument was of real practical use, and the brilliant idea of using synchronously rotating discs, now 

 employed in the Hughes printing apparatus, was entirely his own. The only defect in his invention was the comparative' 

 slowness with which a succession of symbols could be transmitted '.—D. N. B. He at once offered the invention to the 

 Admiralty, and was ofHcially answered that now the French war was over telegraphs of any kind were wholly needless, 

 and that no other than the .semaphore then in use would bo adopted. The inventor published the above account first in 

 1823, and then dropped telegraphy for good. 



This second edition contains uninteresting preface dated Battle, Oct. 9, 1871, and written in the inventor's 83rd year 

 and 48 years after the publication of the first edition. There are however only 4 plates, instead of the S contained in the 

 original edition. 



It is pleasing to remember that an Englishman, Dr. William Gilbert, wrote the first scientific treatise on electricity 

 in Elizabeth's reign, and another invented the electric telegraph in George the Third's, and another' wireless telegraphy 

 (on the Flat Holm in the Bristol Channel) in Queen Victoria's. 



14421 RONAYNE (Philip) Treatise of Algebra, in two Books, the First treating of the 

 Arithmetical, the Second of the Geometrical Part ; 2nd Edition, with Additions, numerous 

 diagrams, 8vo. old calf, 8« 6«? 1727 



This work was unknown to Poggendorff (who does not even in«Mition the author), Lowndes, and AUibone. Pp. 305-461 

 treat of the ob.solete Mkthod of Exhaustion, with applications to draw tangents, to find the maxima and minima of 

 curves, and to quadratures, yet the author does not even remotely refer to Newton's Method of Fluxions, or the principle* 

 underlying it. The author was doubtless an ancestor of Joseph Philip Ronayne, railway and hydraulic engineer in 

 Ireland and California, and Home Rule M.P., who «lied in 1870. 



14422 RONCA (Cap. di Freg-ata G.) Manualb di Balistica Esterna ; with tables and diagrams^ 

 8vo. sewn, 4* Livorno, 1901 



14423 Manuals del Tiro, con un Appendice del Prof. [G.] Pesci sulla * Nomografia ' ; with 



10 tables and 202 other illustrations, thick Svo. sewn, Qs (p. L. 10 nett) ibidem, 1901 



14424 ed A. BASSANI : Balistica Esterna ; with 78 illustrations, Svo. sevmt 5s ib., 1901 



This work was awarded its gold medal by the Italian Ministry of Marine. 



14425 RONDELET (Antoine Jean Baptiste ; son of Jean Rondelet) Essai Historique sur le 

 Pont de Kialto ; unth 12 engraved plates, folio, boards (back damaged), %s 6c? 1836 



One of the few monographs on the glorious Venetian bridge. It includes the alternative schemes of Scamozzi, and that 

 carried out by Antonio da Ponte, and a discussion of the covered monumental bridge in the Third Book of Palladio. 



14426 RONDELET (Jean, de VInstitut) M^moire sur la Marine des Anciens, et sur les Navires 

 k plusieurs Bangs de Rames ; loith 10 folding copperplates, roy. 4to. sewn (rare), 15* 



chez Vauteur, 1820 

 This is probably the only complete work ever written on this interesting subject, and fully discu.sses the ships of 

 many-banked oars which must have added a horror of their own to the slavery of a cultured Antiquity. There was no 

 copy of the work in the Scott Library, nor is there one in that of the Institution of Naval Architects. 



14427 Trait6 Theorique et Pratique de I'Art de Batir, 10« :^dition, 5 vols. 4to., and Atlas 



containing 210 plates, roy. folio — 6 vols, hf russia (backs rubbed), I5s 1842-3 



'Cette edition doit etre preferee X toutes celles anterieures, parce qu'elle renferme, non-seulement les corrections faite.s 

 par I'auteur lors des reimpressions enti^res ou partielles de I'ouvrage, mais encore les corrections et additions du fils de 

 I'auteur i paitir de la V'c edition, publiee de 1827 i 1832. Cet important ouvrage est indispensable i tout architecte. La 

 clart^ avec laquelle est redigc ce grand corps de doctrine, tout A la fois th6orique et pratique, en rend la lecture facile X 

 quiconque vent surveiiler par lui-meme ses constructions.'— ^M^raj-cf. 



14428 RONEY (Sir Cusack Patrick) Rambles on Railways, with 11 plates and folding maps, 

 Svo. cl., 5s 1868 



