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



3680 POISSON (Simeon Denis; F.R.S.) NOUVELLE THEORIE de I'ACTION CAPILLAIRE; with folding 

 plate, 4to. hf. calf (SCARCE), 1. 15s 1831 



' Reprenaut la theorie de 1'action capillaire, il trouve la cause de ces phenomencs dans cette remarquc, 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 renferme le liquide.' E. Merlieux. 



3681 RECHERCHES sur le MOUVEMENT des PROJECTILES dans 1'AlR, en ayant egard h. leur 



Figure et leur Rotation, et a 1'Influence du Mouvement Diurne de la Terre, 4to."A/. calf, 5s 1839 



3682 RECHERCHES sur la PROBABILITE des JUGEMENTS en MATIERE CRIMINELLE et en 



MATIERE CIVILE, precedees des Regies generates du CALCUL des PROBABILITIES, 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), 9s 1835 



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 1'atmosphere, et du lieu do 

 1'espace oii la Terre se trouve actuellement.' , 



3885 TRAITE de MECANIQUE, 2 e [derniere] Ed., considerablement augmented ; with 7 folding 



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

 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 8 folding plates, 2 thick vols. 8vo. hf. morocco gilt (SCARCE), 1. Is 1842 



1 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 Mecanique analytique \_q. v. ante] and Poisson's Traite de Mecanique.' W. W. R. Ball. 



3688 POLE (William, F.R.S. ; musician and ivhist 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 10 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 Marchese, Padova; F.R.S.) EPISTOLARUM MATHEMATICARUM FASCICULUS ; 

 with 10 folding plates, 4to. old calf gilt (FINE COPY), with bookplate of Philip 2nd Earl Stanhope, 

 F.R.S., 12s Qd 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 qure derivantur FLUVIORUM 



AQU.E ; 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 THERMOMETRIS : MACHINE ARITMETKLE [sic], etc. etc., '09 

 6 vols. 4to. in 1, old calf (nice copies), with bookplate of Philip 2nd Earl Stanhope, F.R.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 Analy tice expressa ; with 7 folding plates, 4to. fine copy in contemporary Italian 

 vellum (rare), 10s Qd Patavii, 1712 



3694 POLINTERE (Pierre) EXPERIENCES de PHISIQUE, 4 e Ed., augmented; 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 Poggendorff, the author was the first to deliver public lectures on experimental physics in Pari?. 



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) 1800-4 



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 Qd 1884 



3697 The SHIPBUILDING INDUSTRY: its History, Practice, Science, and Finance, 20 plates, post 



Svo. cl., 2s 1905 



3698 PONCELET (General Jean Victor) TRAITE des PROPRIETES PROJECTIVES des FIGURES ; with 

 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.' 

 W. W. R. Ball. 



3703 POND (John, Astronomer Royal) ASTRONOMICAL OBSERVATIONS at the ROYAL OBSERVATORY 

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

 hurst College bookplate, 1. 5s 1815-19 



The Observations were continued to 183.1. Vol. II (1814-16) includes the author's Catalogue of 400 Stars, reduced to 

 1817.0. The plates illustrate the six-foot mural circle by Tronghton, which was mounted at the Observatory in IS 1 2. 



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

 astronomy ; BessH, many of whose refinements hn anticipated, was his enthusiastic admirer.' Agne.-s M. Clerke. 



3701 POOLE (Joseph) The PRACTICAL TELEPHONE HANDBOOK, and Guide to the Telephonic EX- 

 CHANGE, with 227 illustrations, sq. post Svo. hf. morocco neat (title stamped), 2s 6d 1891 



