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



13348 PING!R]6 (Alexandre Guy, Chanoine Regulier de Ste. -Genevieve ; Chancel ier de VUniver site 

 de Paris ; de VAcademie des Sciences) Cometographie, ou Traite historique et theorique des 

 Cometes ; with 7 copperplates, 2 vols. 4to. old French mottled calf extra [top of bach slightly 

 damaged) ; rare, £1. 10* Imprimerie Royale, 1783-4 



13349 '■ — Another Copy, 2 vols, hoards^ uncut {very sound and clean copy), £1. 10* 



' The most complete historical and general treatise on comets which has appeared.'— Pro/. Neiucomh. 



' His celebrated Cometographie, which for the industry and labour bestowed on it has few equals, has been from the 

 period of its publication down to the present day the astronomer's text-book on the subject of cometar>' history : it has 

 never been superseded, and is never likely to be, though supplementarj' matter has of course been accumulated.'— 

 Cliarahers' s Handbook of Astronomy (1889). 



13350 PINTO d'AIiMEIDA (A. J.) PRINCIPIOS de Geologia ; with 2 diagrams, 4to. hf. bound, with 

 Sandhurst College bookplate, 4* Coimbra, 1838 



13351 PIOBEE.T {G6n. Guillaume ; de VInstitut) CouRS d'ARTiLLERiE ; Partie Theorique, 

 redigee d'apres ses Cahiers et ses Lecons par MM. DiDlON et de Saulcy ; lithographed on 418 

 pp. from the MS., with numerous illustrations, cr. 4to. hf. calf, 5s 1841 



13352 , et A. L. TARDY : Experiences sur les Roues Hydrauliques a Axe Vertical, et 

 sur rEcouleraent de I'Eau dans les Coursiers et dans les Bases de Forme Pyramidale ; with 4 



folding plates, 4to.(pp. 40), sewn, 5s Qd 1840 



' Les experiences rapportees dans le present ouvrage offrent un des premiers exemples de I'emploi du frein [Prony, 

 V. No. 13731, 2^081] a la mesure de I'effet utile transmis par les m&chines.'—Avant-projio's. 



13353 PIOLA (Gabrio) SuU'Applicazione de'PRiNCiPJ dellaMECCANicA An ALiTiCAdi Lagrange 

 ai principali Problemi, roy. 4to. boards, uncut, Is 6d Imp. Regia Stamperia, Milano, 1825 



' Lo scopo di questa memoria e di trovare una nuova dimostrazione delle equazioni generali dell' equilibrio et del moto 

 date nella meccanica analitica. Lagrange serA'endosi del solo assioma o principio delle velocita virtuali. . . , L'autore 

 ricorre a un nuovo metodo che la qualche rassomiglianza con quello usitato due secoli da Bonaventura Cavalieri nella sua 

 geometria degl' indivisibili, e che propriamente chiamasi metodo dei \h\\\t\.'—R(ij>poit(t. 



13354 PIBIE (George, Prof. Math., Aberdeen) Lessons on Rigid Dynamics, w«Y A diagrams, cr. 8vo. 

 cl., 35 (p. 6*) 1875 



13355 PISANI (Felix) Analyse de la Fibroferrite de Pallieres (Gard) : Sur quelques 

 Nouveaux Min^RAUX du Cornouailles, 4to. (pp. 4), sewn, \s Qd 1864 



13356 Description d'un Appareil servant a la Recherche de plusieuis Acides ; with plate, 



8vo. (pp. 3), sewn, Is ■ [c. 1860] 



13357 I^tude Chimique et Analyse de I'Aerolithe d'ORGUEiL, 4to. (pp. 4), sewn, 



\s 6d ^ 1864 



13358 l^TUDE Chimique et Analyse du Pollux de rile d'ELBE, 4to. (pp. 3), seu-n, IsQd 1864 



13359 Notices Min^ralogiques, 4to. (pp. 4), sewn, Is 6d 1876 



1.3360 Sur le Grenat Octaedrique de I'lle d'ELBE, 4to. (pp. 2), sewn. Is 6c? s. d. 



13361 Sur les Mineraux trouves dans la Mine de Cuivre du Cap Garonne (Var), 4to. 



(pp. 4), seivn. Is 6d 1870 



13362 Sur une NouvELLE EspECE MiNERALE du Cornouailles, la Devilline, 4 to. (pp. 2), 



sevm, Is 6d 1864 



13363 Sur la Separation de I'Acide TiTANiQUEetde la Zircone, 4to. (pp. 4), seirn. Is 6d 1864 



13364 Sur un Silicate de Baryte Cristallise, obtenu artiticiellement, 4to. (pp. 3), sev-n. 



Is M 1876 



13365 Sur un Sulfo-Antimoniure de Plomb trouve a Arnsberg (Westpbalie), 4to. (pp. 3), 



sewn, Is Qd , 1876 



13366 Traite Element aire de Mineralogie, precede d'une Preface par Alfred des 



Cloizeaux; ivith 184 vmodcuts, post 8vo. hf calf gilt (o. p.), 4s (p. F. 8 nett sewn) 1875 



' M. Pisani a rendu un veritable service aux mineralogistes en reunissant toutes les especes minerales bien determinees 

 aujourd'hui par leurs caracteres cristallographiques, optiques et chimiques.' — A. des Cloizeaux, de Vlnxtifvt. 



13367 PISATI(G., Univ. i^ow^e) Su la Dilatazione, la Capillarita e la Viscosita del Solfo 

 Fuso ; with plate, roy. 4to. (pp. 6), sewn, 2s [Roma, 1877] 



13368 , ed E. PUCCI : Sulla LuNGHEZZA del Pendolo a Secondi ; with 4 plates, 4to. (pp. 



178), seivn, icith author's inscr., 4s ibidem, 1883 



13369 , e C. SAPORITO : RiCERCHE Sperimentali suUa Tenacita dei Metalli a diverse 



Temperature ; with plate, 4to. (pp. 16), sett-n. Is Qd [ib.,'\ 1877 



PITATI (Pietro, da Verona) Ver^ Solaris atque Lunakis Anni Quantitatis . . . 

 Explicatio (1568)— v. Piccolomini, No. 13299, ante. 



13370 PITISCUS (Barth.olom8eus) Trigonometric sive de Dimensione Triancjulor [uui] Libri V, 

 item Problematum varioru, nempe Geod.ieticorum, Altiraetrieorum, Geographicorum, Gnomoni- 

 corum, et Astronomicorum Libri X, Editio III., cui reeens accessit Problematum Arcliitect- 

 onicorum Liber unus; with engraved title and nurnerous diagrams: Canon Triangulorum 

 emendatissimus, et ad Usum accommodatissimus, pertinens ad Trigonometriam — 2 vols. sm. 4to. 

 in 1, fine copies in old English calf, with bookplate of the Duke of Sussex (rare), £2. 2s 



Francofurti, N. Hofmann, 1612 

 The last edition of the first complete text-book of trigonometry. ' It contains the expressions for sin (A±B; and cos 



(A± B) in terms of the trigonometrical ratios of A and B.' — W. W. R. Boll. 



' Both very scarce. Brunet mentions only the first edition (containing solely ten Books of Problemata), as printed in 



1600 at Augsburg. The third improved edition was totally unknown to him, as was also the Canon, which is not 



mentioned by Lalande, and is even rarer than the celebrated ' Thesaurus Mathematicus', published by the same author 



in IQlZ.'—LihriCataloquc. 



13371 PLAATS (J. D. van der ; Utrecht) Determination de quelques Poids Atomiques, 4to. 

 (pp. 4), sewn, Is Qd [1885] 



13372 Essai de Calcul des Poids Atomiques de M. Stas, 8vo. (pp. 34), seu-n, Is 6c? 1886 



13373 Sur les Poids Atomiques de Stas, 4to. (pp. 6), seu-n. Is Qd [1893] 



