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



13187 PETTY (Sir William, f.r.s.) The Discourse made before the Royal Society the 26. of 

 November 1674 concerning the Use of Duplicate Proportion in sundry Important Particulars ; 

 with a New Hypothesis of Springing or Elastique Motions, 24mo. contemporary calf {blank 

 portion of last I. missing, some II. waterstained, and title soiled) ; rare, 15* 



John Martyn, Printer to the Royal Soc, 1674 

 Interesting for containing some extraordinary and interesting speculations in molecular physics. In his dedication to 

 the Duke of Newcastle the author states the work to contain three parts: 'I. an Endeavour to explain the intricate 

 Notions, or Fhilosophia Prima of Place, Time, Motion, and Electricity ; II. to excite the World to the study of a little 

 Mathematicks by shewing the use of Duplicate Proportions in some of the most weighty of Humane Affairs ; III, Chymerical 

 Speculations, to consider such points and proportions, even in Atoms (such, whereof perhaps a Million do not make up 

 one visible Corpusadum,) as may give an intelligent Account of the Xexures, Mixtures, and Mobilities of all parts of the 

 Universe. ' 



13188 PETZHOLDT (Georg Paul Alexander ; Univ. Dor pat) Die Agrikulturchemie in populiiren 

 Vorlesungen, 2. unigearbeitete Auflage ; with woodcuts, 8vo. sewn, 2^ Leipzig, 1846 



13189 Lectures to Farmers on Agricultural Chemistry, post 8vo. cL, '2s Qd 1845 



13190 PETZVAL (Joseph) iNTEGRATIONderLINEARENDlFFERENTIALGLEICHUNGENmitCONSTANTEN 



und VERANDERLICHEN COEFFICIENTEN, LlEFERUNG 1-3; with plate, in one vol. 4to. hf. calf neat. 

 Is &d (p. M. 28.30 sewn) ]'Vien, 1851-5 



13191 PEXTERBAOH, Xa^me PURB AOHIUS (Georg) Theoric^ Nov^ PLANETARUM,ab Erasmo 

 Reinholdo Salueldensi pluribus Figuris auctoe, et illustratse Scholiis, quibus studiosi pr»parentur, 

 ac inuitentur ad Lectionem ipsius Ptolem.ei ; recens edit»e et auctre novis Scholiis in Theoria 

 Solis ab ipso Autore Incerta item Methodica Tractatio de Illumination E LuN^ ; with 3 

 plates and numerous other woodcuts and diagrams, r2mo. old vellum {one corner partly water- 

 stained, otherwise a very sound and clean copy), \Ss Qd Parisiis, C. Perier, 1557 



The editor, Erasmus Reinhold, was professor of higher mathematics in the University of Wittenberg, and, according to 

 Poggendorff, one of the first adherents of the Copernican system, and the first to mention, in the above work, the camera 

 obscura, but in an imperfect state (v. Porta, Ao. 13517 fost). At end is : Theorica Motns Octavie Spha?ra-\ 



13192 Tractatus super Proposition es Ptolem^i de Sinubus et Chordis; item Compositio 



Tabularum Sinuum per Joannem de Regiomonte, cum Tabulis Sinuum Duplices per 

 eundem Regiomontanum, editio princeps; with diagrams, folio, parchment {water-stained, but 

 a sound copy) ; rare, £1. Is Norimbergae, Johan. Petreius, 1541 



The first satisfactory table of sines ever published, ar.d one of the author's most celebrated works. A full account of 

 it will be found in Prof. Cantor's Vorle.snngen iiher Geschich'c dcr Mathematik, Vol. II. 



' Lesdeux hommes a qui les mathematiques doivent le plus dans le XV'e sieele, sont Purhach et Regiomontanus. Ce ne 

 sera pas concevoir d'eux une idee trop avantageuso, que de les regarder les vrais restaurateurs de ses sciences, et surtout 

 de I'astronomie '. — Montiida. 



The author was a native of Peuerbach, a market town of Upper Austria, whence his name ; professor of mathematics in 

 the university of Vienna, and the teacher of Regiomontanus. 



13193 PFAFF (Christian Heinrich, Univ. Kiel) Revision der Lehre vom Galvano-Voltaismus, 

 mit besonderer Riicksicht auf Faraday's, de la Rive's, Becquerel's, Karsten's u. a. neueste Arbeiten ; 

 with folding plate, Svo. scum, 7s 6d Altona, 1837 



13194 Another Copy, boards {nice copy), 8s 6d 



The author was one of the earliest and foremost supporters of the contact theory of voltaic electricity, and much of the 

 work is directed against the chemical theory advanced (by Wollastoii, Fabbroni, and Ritter) to account for electric 

 action. He also revised Volta's contact series, and was one of the few who appreciated the importance of Ohm's discovery. 



13195 PFAFF (Friedrich, Univ. Erlangen) Die Naturkrafte in den Alpen ; oder physikalische 

 Geographie des Alpengebirges ; with diagrams and woodcuts, post 8vo. hf calf extra {nice copy), 

 ^ 6fl^ MVmchen, 1877 



13196 PFAFF (Johann Wilhelm Andreas, Univ. Erlangen) Betrachtungen iiber die Spirale ; 

 with plate, 4to. (pp. 14), sewn, 2s [/ Milnchen, 1832] 



Not noticed by Poggendorff. 



13197 PFAUNDLER (Leopold v.; Univ. Graz) Die Entwerthung der Materie, post Svo. 

 (pp. 32), sewn, \s Qd Wien, 1888 



13198 PFEFFINGER (Jean Frederic) Fortification Nouvelle, ou Recueil de differentes 

 Manieres de Fortifier en Europe, nouvelle Edition; with frontispiece, vignette on title, and 46 

 folding copperplates, 8vo. boards, uncut, with auto, of [Gew.] Robert Melville [F.R.S., 1723-1809, 

 inventor of a naval gun], 5s 6c? La Haye, 1740 



This work was unknown to Querard. The Biographie Gene rale only mentions an edition of 16!tS. 



13199 PHELPS (Robert, Trinity Coll., Cantab.) Elementary Treatise on Optics, intended 

 chiefly to elucidate the Principles of the Construction of Telescopes, and some other Optical 

 Instruments, wdh 69 diagrams, Svo. boards, uncut {scarce), 5s Cambridge, 1835 



T-n-o-ci /tr "^^ ^^^^ Cambridge text-book of geometrical optics. 



13200 PHILLIPPES (Henry, Philo-Nauticus) The Sea-Man's Kalender : or, an Ephemerides of 

 the Sun, Moon, and certain of the most notable Fixed Stars, also a Table of the Longitude and 

 Latitude of all the most eminent Places of the World, first calculated by John Tap, corrected, 

 with many Additions, viz. New Exact Tables of the North Star ; New Tables of 65 of the 

 principal Fixed Stars, etc., with a Discovery of a Way to Find the Long Hidden Secret of 

 Longitude, by Henry Bond, all which are now newly calculated and corrected, and many Rules 

 and Tables added, ivith woodcuts {with thefull-paqe one on p. 11 intact), sm. 4to. large and sound 

 copy in contemporary sheep {back damaged) ; rare, with Tixall Library label, £1. 155 



.,, . ' ,. W.Godbid for E. Hurlock, 1614 



It IS a Compendium (if well understood) of the whole Art of Navigation. But its chiefest excellency consists in the 



Astronomical part thereof ; the Tables whereof are so plain and full, and well ordered, that there never were the like in 



any Uook. — Address to the Ingenious Sea-vmn. At end is a table, giving the latitude and lonr,itude of over 1000 places, by 



T. Stern, globe-maker. o c ±' , j 



The work was unknown to Lowndes, while Watt only Quotes an edition of IGOO. There was no copy of any edition in 

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



