186 HENRY SOTHERAN & CO., 140, STRAND, W.C, and 37, PICCADILLY, W. 



36S0 POISSON (Simeon Denis; f.r.s.) Nouvelle Theorie de TACTION Capillaire; with folding 



plate, 4to. hf. m^/ (scarce), £1. 15* 1831 



' Reprenaiit la theorie de Taction capillaire, 11 trouve la cause de ces phenomencs dans cette remarque. que la densite 



d'un liquide varie avec la profondeur de la partie que Ton considere et aussi avec la distance de cette partie aux parois du 



vase qui renfeniie le liquide.'—£. AferZiewa;. 



3681 Reciierches sur le Mouvement des Projectiles dans I'AiR, en ayant 6ocard k leur 



Figure et leur Rotation, et k I'lnfluence du Mouvement Diurne de la Terre, 4to. hf. calf 5s 1839 



3682 Recherches sur la Probabilite des Jugements en Matiere Criminelle et en 



Matiere Civile, precedees des Rfegles generales du Calcul des Probabilites, 4to. calf or, hf 

 calf Is 1837 



The author develops in this work his ' law of great numbers, 



3683 Theorie Mathematique de la Chaleur; with folding plate, 4to. hf calf {water- 



stained^ 95 Iood 



Containing numerous important propositions, chiefly on the distribution of heat and the heat of the centre of the earth. 



3684 Le Meme, avec le Supplement— 2 vols. 4to. in 1, hf calf 12s Qd 1835-7 



The supplement consists of a ' Memoire sur les temperatures de la partie solide du globe, de I'atmosphfere, et du lieu do 

 I'espace ou la Terre se trouve actuellement.' 



3685 Traite de Mecanique, 2^ [derniere] Ed., considerablement augmentee ; with 7 folding 



plates, 2 vols. 8vo. sewn, 6s 1833 



3386 Another Copy, hf calf 7s Qd 



The best-known of the author's works, and for a long time the standard work on the subject. 



3687 Treatise of Mechanics, trans., with explanatory Notes, by Henry H. Harte, pr., 



Fellow T. C. D., with ^folding plates, 2 thick vols. 8vo. hf morocco gilt (scarce), £1. Is 1842 



' The knowledge of mathematical mechanics of solids attained by the great mathematicians of the XVIII. century may 

 be said to be summed up in Lagrange's Mecaniqxie analytlque [q. v. ante'] and Poisson's Traite de Mecanique.'— W. W. R. Bull. 



3688 POLE (William, f.r.s. ; musician and whist player) Iron as a MATERIAL of Construction, 

 diagrams, post 8vo. cL, or, hf calf [out of print), 2s Qd 1872 



3689 Treatise on the Cornish Pumping Engine, with Historical Notice of the Applica- 

 tion of the Steam Engine for Draining Mines in Cornwall, and Analytical Investigation of the 

 Action of the Cornish Engine, with \Q folding plates, and woodcuts, 4to. cL, Is Qd (p. £1. 12s) 1844-8 



3690 Another Copy, hf calf 8s Qd 



The classic work on one of the most highly specialised and efficient products of English steam-engine practice. 



3691 POLENI (Giovanni Marchess, Padova; f.r.s.) Epistolarum Mathematicarum Fasciculus ; 

 vnth \{) folding plates, 4to. old calf gilt (FINE COPY), with bookplate of Philip 2nd Earl Stanhope, 

 F.R.S., 12s 6d Patavii, 1728 



The author's correspondence on astronomical, hydraulic, mathematical and physiological subjects with Manfredi, Guido 

 Grandi, Jacob Hermann, and Marinoni. 



' Bella e rara edizione . , . pregevola collezione.' — Riccardi. The author's statue in Padua was one of the first works 

 of Canova. 



3692 De MOTU Aqu^e Mixto ; 3 plates, '17 : De Castellis per qun3 derivantiir Fluviorum 



Aqu^ ; plate, '18 : De Mathesis in Rebus Physicis Utilitate, '20 : De Physices in Rebus 

 Mathematicis Utilitate, '16: Observatio Solaris Eclipsis, V. Nonas Maias, 1715, '17: 

 Miscellanea : de Barometris et Tiiermometris : Machine Aritmetic^ [sic], etc. etc., '09— 

 6 vols. 4to. in 1, old calf [nice copies), with bookplate of Philip 2nd Earl Stanhope, F.E.S. (rare), 

 £1. 5s ib. et Venetiis, 1709-20 



These are the author's chief scientific writings, especially valuable for his work on hydraulics (of which a full account 

 is given in Montucla, v. Ill, pp. 634-5), now very scarce. Three of them were unknown to Poggendorff. 



3693 De Vorticibus Ccelestibus Dialogus ; cui accedit Quadratura Circuli Archimedis et 



Hippocratis Chii Analytice expressa ; with 7 folding plates, 4to. fne copy in contemporary Italian 

 vellum [rare), 10s 6c? Patavii, 1712 



3694 POLINIEUE (Pierre) Experiences de Phisique, 4^ Ed., augmentde; with plates, 2 vols. 

 12mo. nice copy in old calf gilt, with bookplate of Philip 2nd Earl Stanhope, F.R.S., 5s 1734 



According to Poggendorfi", the author was the first to deliver public lectures on experimental physics in Paris. 



3695 POLLARD (J.), et A. DUDEBOUT : Architecture Navale : Theorie du Navire; with 

 folding plates, and numerous diagrams, 4 vols. roy. 8vo. hf. green morocco gilt [nice copy), £1. 12s Qd 



(p. F. 54. nett unbound) 1890-4 



3693 POLLOCK (David, m.i.n.a.) Modern Shipbuilding, and the Men engaged in it : recent 

 Progress in Steamship Design and Construction, with Descriptions of notable Shipyards, Biograph- 

 ical Notes, etc., 15 portraits, and 3 views of steamships, besides woodcuts, 8vo. cl. [out of print), 

 4s M 1884 



3697 The Shipbuilding Industry: its History, Practice, Science, and Finance, 2Q plates, post 



8vo. cl., 2s 1905 



3698 PONCELET (General Jean Victor) Traite des Propriiiites Projectives des Figures ; loith 

 12 plates, 4to. sewn, uncut, with auto, of Gen. R. C. Moody, 8s 1822 



3699 Another Copy, hf calf gilt, 9s 



' Long one of the best-known text-books on modern geometry. By means of projection, reciprocation, and homologous 

 figures he established all the chief properties of conies and quadrics. He-also treated the theory of polygons.'— 



r\ . rV , JV. JjCltC, 



3:03 POND (John, Aatronomer Royal) Astronomical Observations at the Royal Observatory 

 at Greenwich, 1811-17, printed on thick paper, ivith 2 plates, 3 vols. roy. folio, hf. calf ivith Sand- 

 hurst College bookplate, £1. 5s 1815-19 



The Observations were continued to 183.".. Vol. It (1814-1(5) includes the author's Catalogue of 400 Stars, reduced to 

 181 / .0. The plates illustrate the six-foot mural circle by Troughton, which was mounted at the Observatory in 1812. 



Arago visited Greenwich to acquire Pond's methods ; Airy regarded him as the principal improver of modern practical 

 ^^^^'^ii'-i^' ^^•'^^^'> "i''^"y of whose refinements he anticipated, was his enthusiastic admirer.'— ^<7«e.s M. Gierke. 



3/01 POOLE (Joseph) The Practical Telephone Handbook, and Guide to the Telephonic Ex- 

 change, ivith 227 illustrations, sq^. post 8vo. hf morocco neat [title stamped), 2s 6d 1891 



