HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 673 



13456 POINCABE (Henri Jules, de VInstitut; F.R.S., brother of the President of the French 

 Republic) CALCUL des PROBABILITES : Lecons professees pendant 1893-4, redigees par A. QUIQUET ; 

 with 19 diagrams, roy. 8vo. sewn, 4s (p. F. 9 nett) 1896 



13457 ELECTRiTE'et OPTIQUE, I. Les Theories de Maxwell, et la Theorie Electrornagnetique 



de la Lumiere. II. Les Theories de Helmholtz et les Experiences de Hertz ; with 54 e diagrams, 

 2 vols. roy. 8vo. in 1, hf. buckram, 8s Qd 1890-1 



13458 DEUXIEME [DERNIERE] EDITION, revue et completee par JULES BLONDIN et EUGENE 



NECULCEA ; with 62 diagrams, roy. 8vo. (pp. 651), hf. calf gilt, 16s 1901 



13459 Sur un THEOREMS de M. FUCHS, roy. 4to. (pp. 32), sewn, 2s Qd Stockholm, 1885 



13460 POINSOT (Louis ; de VInstitut) ELEMENTS de STATIQUE, suivis d'un Memoire sur la Theorie 

 des Momens et des Aires, 4 e Edition, revue par 1'Auteur ; with 4 plates, 8vo. hf. calf (back 

 damaged), with auto, of Judge Vernon Lushington [Positivist], 2s Qd 1824 



13461 HUITIEME -EDITION, augmentee, suivie de QUATRE MEMOIRES ; with 4 folding plates 



comprising 91 diagrams, 8vo. boards, uncut, 4s Qd 1842 



13462 ANOTHER COPY, having the diagrams pasted to the passages they belong to, hf. calf 



gilt, 5s Qd 



BEST EDITION, well printed in large type. The memoires comprise : Sur la Composition des Moments et des Aires ; sur 

 le Plan invariable du Systeme du Monde ; sur la Theorie generate de 1'Equilibre et du Mouvernent des Systemes ; sur une 

 Theorie nouvelle de la Rotation des Corps. 



13463 DIXIEME EDITION, suivie de QUATRE MEMOIRES ; with 4 plates, 8vo. sewn, uncut, 4s Qd 1861 



'This work is remarkable not only as being the earliest introduction to synthetic mechanics, but also as containing for 

 the first time the idea of couples.' Prof. Cajori. 



13464 DOUZIEME EDITION, pre"cedee d'une NOTICE par J. BERTRAND, de 1'Institut ; ivith 4 



folding plates, 8vo. hf. calf gilt (o. p.), 5s 1877 



This edition does not contain tlie Memoires, but has Bertrand's Life of the author. ' La statique de Poinsot est. sous 

 une infinite de rapports, un modele precieux, presque inimitable, que les savants aimeront toujours a relire.' M. Marie. 



13465 THEORIE des CONES CIRCULAIRES ROULANTS ; with folding plate, 8vo. sewn, 2s Qd 1852 



13466 THEORIE NOUVELLE de la ROTATION des CORPS ; with 2 folding plates, roy. 8vo. sewn 



(scarce), 10s 1852 



13467 OUTLINES of a NEW THEORY of ROTARY MOTION, translated, with Notes, by CHARLES 



WHITLEY, F.R.A.S., with 3 plates, 8vo. cl., uncut (VERY SCARCE), 12s Qd Cambridge, 1834 



' A clear conception of the nature of rotary motion was conveyed by Poinsot's elegant geometrical representation by 

 means of an ellipsoid rolling on a certain fixed plane.' Prof. Cajori. 



13468 POINTER (John, > Rector of Slapton, Northants.) i A RATIONAL ACCOUNT of the WEATHER, 

 shewing the Signs of its several Changes and Alterations, with the Philosophical Reasons of them. 

 Collected from Common Observations, etc. etc., first edition, large 12mo. sound copy in old hf. 

 calf (RARE), 15s Oxford, 1723 



13469 SECOND EDITION, corrected and much enlarg'd : with Three Essays towards accounting 



for I. A continued Course of Wet Years. II. The Cause of an Aurora Borealis. III. The Cause 

 of the Plague, 8vp. old calf (rare), 1. Is 1738 



This work, which is distinguished for the common-sense views held by the author, comprises : Signs of Rain, Rainy 

 Weather, Fair Weather, Mists, Windy Weather and Tempests, Hail, Cold and Frosty Weather, Hard Winters, Pestilential 

 Seasons, and Signs of the Weather from the Weather-Glasses. 



' It was pointed out in the Gentleman's Magazine, 1748 (pp. 255-6), that this volume supplied the groundwork of ' The 

 Shepherd of Banbury's Rules to judge the Weather, by John Claridge, shepherd.' D. N. B. (v. Nos. 6903-5 ante). 



There is no copy of the second edition in the Royal Meteorological Society's Library Catalogue, 1891. 



13470 POISEUILLE (Jean Leon Marie, de I' Academic de Medecine), RAPPORT sur un MEMOIRE 

 de, ayant pour Titre : RECHERCHES EXPERIMENTALES sur le MOUVEMENT des LIQUIDES dans les 

 Tubes de tres-petits Diametres, Commissaires, MM. ARAGO, BABINET, PIOBERT, REGNAULT 

 Rapporteur; with plate, 4to. (pp. 21), sewn, 3s [1842] 



13471 POISSON (Simeon Denis; F.R.S.) MEMOIRE sur les TEMPERATURES dela P ARTIE SOLIDE du 

 GLOBE, de 1' Atmosphere, et du Lieu de 1'Espace oil la Terre se trouve actuellement ; with folding 

 plate, 4to. (pp. 72), sewn, 3s 1837 



Forming the supplement to the author's ' Theorie mathematique de la Chaleur.' 



13472 MEMOIRE sur la THEORIE du SON, 4to. (pp. 74), sewn, '3s Qd [1808] 



13473 NOUVELLE THEORIE de 1' ACTION CAPILLAIRE ; with folding plate, 4to. hf. calf gilt, 



with bookstamp of Francis Bashforth, pr. (SCARCE), 1. 15* 1831 



' Reprenant la theorie de 1'action capillaire, il trouve la cause de ces phenomenes 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 renferme le liquide.' E. Merlieux. 



The above and Laplace's are the chief memoirs published on the subject of capillarity. Poisson's theory differs 

 considerably from Laplace's, although both arrive at the same,results. 



13474 TRAITE de MECANIQUE, 2 e [derniere] Edition, considerablement augmentee ; with 7 



folding plates, 2 vols. 8vo. hf. calf; or, calf, Qs 1833 



13475 ! ANOTHER COPY, calf extra, Is Qd 



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



13476 TREATISE on MECHANICS, translated, with explanatory Notes (pp. 190), by HENRY 



H. HARTE, pr., Fellow T.C.D., with 8 folding plates, 2 thick vols. 8vo. cl., or, hf. calf (scarce), 

 15s 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 Mecaniqm analytique \_q. t>. ante] and Poisson's Traite de Mecanique.'W. W. R. Ball. 



13477 POLAK (S.) The THEORY and PRACTICE of PERSPECTIVE DRAWING, with folding frontispiece 

 and numerous diagrams, oblong 4to. cl., 2s Qd (p. 55) 1907 



13478 [POLLASTRI (Bartolomeo, da Milano)] II SUPPLEMENT d'ARiTMETiCA al MAESTRO 

 DE' CONTI, Direttore de' Principianti, ossia il Proseguimento del Vero Modo di Conteggiare all' 

 Uso Mercantila Moderno, dalla Regola del Tre sino alia Falsa Posizione Doppia. Opera dell' 

 ASTRONOMO LOMBARDO, 12mo. boards (one I. slightly defective), 7s Qd Milano [c. 1785] 



