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



13069 PEDERSEN(Carl) Dosage dePETiTEsQuANTiTEsd'ARSENicdanslesMATiEREsORGANiQUES, 

 specialement dans la Biere et dans le Moiit; with woodcut, 8vo. (pp. 25), sewn, with inscr. to Sir 

 Edward Thorpe, F.B.S., Is 6d [Copenhague,] 1902 



13070 PEIRCE (Benjamin, Harvard Univ.) The Latitude of the Cambridge Observatory, in 

 Massachusetts, determined from Transits of Stars over the Prime Vertical, observed 1844-5 by 

 W. C. Bond, J, D. Graham, and G. P. Bond, 4to. (pp. 21), hf. calf, v-ith inscr. as below, 5s 



[Cambridge, Mass., c. 1845] 

 'Captain Simiaons, Royal Engineers, with the respects of Major J. D. Graham, U.S. Top. Engineers'. This was to 

 Field-Marshal Sir John Linton A.rabin Simmons, then employed on his first billet on the boundary commission to delimit 

 the Canadian and New England frontier. 



13071 PEIRCE(Benjamin Osgood, Harvard Univ.) The Conception of the Derivative of a Scalar 

 Point Function with Respect to another similar Function, roy. Svo. (pp. 14), sewn, \s 6c? 



[Boston, Mass.,] 1910 



13072 The Damping of the Oscillations of Swinging Bodies by the Resistance of the Air, 



with ^pleites, roy. Svo. (pp. 26), sewn, 2s [ibidem,'] 1908 



13073 The Effect of Leakage at the Edges on the Temperatures within a Homogeneous 



Lamina through which Heat is being conducted, 2 diagrams, roy. Svo. (pp. 6), sewn, \s [ib.,] 1910 



13074 The Effects of Sudden Changes in the Inductances of Electric Circuits as illus- 

 trative of the Absence of Magnetic Lag and of the V. Waltenhofen Phenomenon in finely 

 Divided Cores, with plate and diagrams, roy. Svo. (pp. 45), sewn, 2s [ib.,] 191 1 



13075 The Magnetic Permeabilities at Low Excitations of Two Kinds of very Pure Soft 



Iron, roy. Svo. (pp. 6), sewn, \s [ib.,] 1910 



13076 The Magnitude of an Error which sometimes affects the Results of Magnetic Tests 



on Iron and Steel Rings, ii:ith diagrams, roy. Svo. (pp. ^), sewn, \s [«6.,] 1910 



13077 The Resistivity of Hardened Cast Iron as a Measure of its Temper and of its Fitness 



for Use in Permanent Magnets, icith plate and 7 diagrams, roy. Svo. (pp. 20), sewn, Is fio? [ib.,] 1910 



13078 The Theory of Ballistic Galvanometers of Long Period, ivith plate and diagrams, 



roy. Svo. (pp. 32), seum, 2s [ib.,] 1909 



1S079 PELETIER [ia^we PELETARIUS] (Jacques) In Euclidis Elementa Geometrica De- 

 monstrationum Libri VI; icith engraved title, and numerous diagtams, folio, old vellum 

 (binding mended, text browned, and blank margins wormed); rare, with AUTO. OF Alfonso 

 Borelli, 105 %d Lugduni, Joan. Tornaidus et Gid. Gazeius, 1557 



' 11 ne s'est pas contente d'interpreter Euclide, il I'a parfois corri'ge heureusement.'— /Jto^/'. Gin. This work also originated 

 the famous controversy with Clavius on the angle of contingency, a full account of which may be found in Prof. Cantor's 

 Vorlcsange.il lib. Gesch. d. Math., Vol. II. 



13080 De Occulta Parte Numerorum, quam Algebram vocant, Libri duo ; with device of the 



fat hen on title, and numerous diagrams, sm. 4to. contemporary limp vellum, {lower blank rnargin 

 wormed, but a large copy), with MS. notes in a contemporary hand (rare), £1. 5s 



Parisiis, G. Cavellat, 1560 



' This is said to be the first French wo:k on algebra. At end is a table of squares and cubes up to those of 140.'— Prof, 

 ch' Morgan. 



' A very ingenious and masterly composition, treating in an able manner of the several parts of the subject then known, 

 excepting the cubic equations. But his real discoveries, or improvements, may be reduced to these three, viz. I. That 

 the root of an equation is one of the divisors of the absolute term. II. He taught how to reduce trinomials to simp'e 

 terms, by multiplying them by compound factors. III. He taught curious precepts and properties concerning square and 

 cube numbers, and the method of constructing a series of each by addition only, namely by adding successively their 

 several orders of differences.'— jL>/-. Hutfon's Tracts, where a full account of the work may be found in Vol. II, pp. 245-0. 



13081 PELLETIEB. (Bertrand, de VInstitut) Memoires et Observations de Chimie, recueillis et 

 mis en Ordre par Charles Pelletier et L. P. E. A. Sedillot; with portrait, and 5 folding 

 copperplates, 2 vols. Svo. sound copy in contemporary hf. calf gilt (rare), 165 %d 1798 



The above volumes contain practically all the author's writings. He was a zealous adherent of Lavoisier, and is best 

 known for having first prepared pure phosjihuretted hydrogen, and a number of phosphor metals. 



'II fit bien connaitre la formation de I'acide muriatique oxygenc, et ses belles recherches sur le phosphore et les 

 phosphures metalliques contribuerent beaucoup aux progres de la science.'— ^/ogr. Gen. 



13082 PELOUZE (Edmond) Art du BRiciUETiER, Chaufournier, et Charbonnier, comprenantla 

 Fabrication du Vinaigre de Bois, premiere edition; with 4 folding plates, 12mo. hf. calf 

 {damaged), with bookplate of Henry B. H. Beaufoy, F.R.S., 5s ' 1828 



130S3 PELOUZE (Theophile Jules), et Edmond FREMY, Membres dc VInstitut: Traite de 

 Chimie Generale, Analytique, Industrielle, et Agricole, 3*^ [derniere] Edition, entierement 

 refondue, Tome VI^: Chimie Organique, III ; with woodcuts, thick roy. Svo. boards, ds &d 1864 



13034 PELTIER (Jean Charles Athanase) Memoirs sur les diverses Especes de Brouillards, 

 4to. (pp. 25), sewn, with auto, and MS. notes by Dr. T. L. Phipson, F.C.S., 5s Bruxdles, 1842 



Added is: ' Lettre de M. Peltier adressee ;i I'Academ'ie Royale de Bruxelles ' (pp. :>), Svo., referring to the above 

 memoir, which is important in connexion with the Theory of Thundei'storms. It was awarded the prize of the Brussels 

 Academy. 



The writer was the author of the Peltier Effect, by which he demonstrated that a galvanic current may have cooling 

 as well as heating effects. 



13035 PEMBERTON (Henry, m.d., f.r.s.), A Scheme for a Course of Chymistry, to be performed 

 by, Svo. (pp. 15), sewn, 3s %d [1731] 



13086 A View of Sir Isaac Newton's Philosophy— y. Newtoniana, Nos. 12617-20, awie. 



13087 PENDLETON (Jolm) Our Railways : their Origin, Development, Incident, and Romance, 

 with folding front, of Frith' s * Railwau Station' and numerous other illustrations, 2 vols. Svo. hf 

 calf, 6* (p. £1. 4a') 1894 



13088 PENDULUM OBSERVATIONS :— Table of Provisional E(,!UATORial Vibration- 

 Numbers of Pendulums used diti'erentially since 1800, with a Synopsis of Pendulum Observ- 

 ations, 1672-1874, roy. 4to. (pp. 22), seivn, '6s Qd Calcutta, 1879 



