2881 Laplace (P. S.). Exposition du Système du Monde. 4me édition, revue et augmentée par l'Auteur. 1 vol. 4to. Paris, 1813.

2882 Laplace (P. S.). The System of the World. Translated from the French by J. Pond. 2 vols. 8vo. London, 1809. 2883 Leibnitii et Bernoullii (Joh.). Commercium Philosophicum et Mathematicum. 2 vols. fol. Lausannae, 1745.

2884 Libes (A.). Histoire Philosophique des Progrès de la Physique.

4 vols. 8vo. Paris, 1810-13.

2885 Libes (Antoine). Traité complète et élémentaire de Physique. 2me édition, revue, corrigée et augmentée par l'Auteur. 3 vols. 8vo. Paris, 1813. 2886 Maclaurin (Colin). An account of Sir Isaac Newton's Philosophical Discoveries in four Books. 2d edition. 1 vol. 8vo. London, 1750. 2887 Martin (B.). Philosophia Britannica; or, a new and comprehensive System of the Newtonian Philosophy, Astronomy, and Geography, in a course of twelve Lectures, with Notes. 3d edition. 3 vols. 8vo. London, 1771. 2888 Martin (Benj.). Philosophical Grammar; being a View of the present State of Experimented Physiology or Natural Philosophy: in four Parts. 6th edition. 1 vol. 8vo. London, 1762. 2889 Maupertuis (De). Figure of the Earth determined from Observations. made by Order of the French King at the Polar Circle.

1 vol. 8vo. London, 1738.

2890 Millington (John). An Epitome of the Elementary Principles of Natural and Experimental Philosophy. 1 vol. 8vo. London, 1823.

2891 Muller (J.). Principles of Physics and Meteorology.

1 vol. 8vo. London, 1847. 2892 Musschenbroek (Peter Van). The Elements of Natural Philosophy. Translated from the Latin by John Colson. 2 vols. 8vo. London, 1744. 2893 Newton (Isaac). Mathematical Principles of Natural Philosophy.

2 vols. 8vo. London, 1729.

2894 Newton (Isaac). Mathematical Principles of Natural Philosophy. A new edition, with the Life of the Author, and a Portrait, taken from the Bust in the Royal Observatory at Greenwich. Carefully revised and corrected by William Davis. 3 vols. 8vo. London, 1819.

2895 Newton (Isaac). Opera quae exstant omnia, cura Horsley.

5 vols. 4to. London, 1779–85.

2896 Newton (Isaac). Philosophia Naturalis principia Mathematica perpetuis commentariis, illustrata communi studio P. P. Thom. Le Seur et Franc. Jacquier. 4 vols. 8vo. Glasguae, 1822.

2897 Newton. Principia. See No. 2920.

2898 Newton (Isaac). Geographia generalis. See Newton, No. 3951.

2899 Nicholson (William). An Introduction to Natural Philosophy. 5th edi2 vols. 8vo. London, 1805.

tion, with improvements.

2900 Otto. See Guericke Otto, No. 2869.

2901 Partington (Charles F.). A Manual of Natural and Experimental Philosophy, being the substance of a series of Lectures delivered in the London, Russell, Surrey, and Metropolitan Institutions. 2 vols. 8vo. London, 1828.

2902 Péclet (E.). Traité élémentaire de Physique. 2me édition.

2 vols. 8vo. Paris, 1832.

2903 Pemberton (Henry). View of Sir Isaac Newton's Philosophy.

1 vol. 4to. London, 1728.

2904 Playfair (John). The Works of, with a Memoir of the Author. 4 vols. 8vo. Edinburgh, 1822. 2905 Poisson. Formules de Probabilités. See Vol. III., No. 388. 2906 Pouillet. Éléments de Physique expérimentale et de Météorologie. 3m 2 vols. 8vo. Paris, 1838.

édition.

2907 Powell (Baden). History of Natural Philosophy, from the earliest periods. to the present time. 1 vol. 8vo. London, 1842.

2908 Powell. Physique. See No. 2842.

2909 Rapport fait à la classe des Sciences Mathematiques et Physiques de l'Institut National. See No. 2249.

2910 Renwick (James). Outlines of Natural Philosophy. (2 vols. in one.) 2 vols. 8vo. New-York, 1822-23. 2911 Rowning (J.). A Compendious System of Natural Philosophy; with Notes containing the Mathematical Demonstrations, and some occasional Re2 vols. 8vo. London, 1744.

marks. In four Parts.

2912 Rowning (J.). The same. 7th edition.

2 vols. 8vo. London, 1772.

2913 Rutherforth (T.). A System of Natural Philosophy, being a course of Lectures in Mechanics, Optics, Hydrostatics, and Astronomy.

2 vols. 4to. Cambridge, 1748.

2914 Saint Pierre (James Henry Bernardin de). Studies of Nature. Translated by Henry Hunter; with additions of numerous original Notes and Illustrations by Benjamin Smith Barton. 3 vols. 8vo. Philadelphia, 1808. 2915 Sigaud de la Fond. Description et Usage d'un Cabinet de Physique expérimentale. 3me édition. 2 vols. 8vo. Tours, 1796. 2916 Simpson (Thomas). Mechanics, Physical Astronomy. See Simpson, No.

2254.

2917 Smith (Robert). Harmonics, or Philosophy of Musical Sounds.

the seventh London edition.

2919 Tralles (J. G). Physikalisches

1 vol. 8vo. Cambridge, 1749. 2918 Somerville (Mary). On the Connection of the Physical Sciences. From 1 vol. 12mo. New-York, no date. Taschenbuch für Freunde der Naturlehre 1 vol. 18mo. Göttingen, 1786. Newton's Principia: Book I., Sections. I., II., III. in the original Latin. With explanatory notes and references. 1 vol. 8vo. London, 1846.

und Künstler.

2920 Whewell (William).

2921 Whewell (Rev. William). Astronomy and General Physics considered with reference to Natural Theology. (Bridgewater Treatises.)

1 vol. 8vo. London, 1839.

2922 Whiston (William). Sir Isaac Newton's Mathematical Philosophy more easily demonstrated: with Dr. Halley's account of Comets, illustrated. The whole is corrected and improved by the Author.

1 vol. 8vo. (2 copies.) London, 1716.

2923 Winkler (John Henry). Elements of Natural Philosophy delineated. Translated from the second edition of the German, as improved and enlarged by the Author. 2 vols. 8vo. London, 1757.

2924 Young (Matthew). An Analysis of the Principles of Natural Philosophy.

1 vol. 8vo. Dublin, 1800.

2925 Young (Matthew). The same.

1 vol. 8vo. London, 1803.

1 vol. 8vo. London, 1811.

2926 Young (Matthew). The same. 2927 Young (Robert). An Essay on the Powers and Mechanism of Nature; intended, by a deeper Analysis of Physical Principles, to extend, improve, and more firmly establish the grand superstructure of the Newtonian System. 1 vol. 8vo. London, 1788. 2928 Young (Thomas). A Course of Lectures on Natural Philosophy and the

Mechanical Arts.

2 vols. 4to. London, 1807.

OPTICS.

2929 Adams (George). Essays on the Microscope; containing a practical description of the most improved Microscopes; a general history of Insects. 2d edition. vol. 4to. & Atlas. London, 1798. 2930 Airy (George Biddell). Undulatory Theory of Optics. See Airy, No. 2825. 2931 Alhazeni. Opticae Thesaurus et item vitellonis, Libri X., illustrati a Fred. 1 vol. fol. Basilea, 1572.

Risnero.

2932 Analyse de la Lumière déduite des Lois de la Mécanique.

1 vol. 8vo. Paris, 1826.

2933 Bache (A. D.). Brewster's Treatise on Optics. See No. 2937. 2934 Bartlett (Wm. H. C.). An Elementary Treatise on Optics; designed for the use of the Cadets of the United States Military Academy. 1 vol. 8vo. New-York, 1839. 2935 Biot. Recherches expérimentales et Mathématiques sur les mouvemens des Molécules de la Lumière autour de leur centre de Gravité.

1 vol. 4to. Paris, 1814. 2936 Biot. Mémoire sur une nouvelle application de la théorie des oscillations de la Lumière. 1 4to. pamphlet. Paris, 1813. 2937 Brewster (David). Treatise on Optics. A new edition, with an Appendix, containing an elementary view of the application of Analysis to Reflexion and Refraction, by A. D. Bache. 1 vol. 12mo. Philadelphia, 1835.

2938 Brewster (David). Treatise on Optics. (Lardner's Cyclopædia.) 1 vol. 12mo. London, 1831. 2939 Brewster (David). Treatise on New Philosophical Instruments for various purposes in the Arts and Sciences, with experiments on Light and Colors. 1 vol. 8vo. Edinburgh, 1813. 2940 Brewster (David). A Treatise on the Microscope; forming the article under that head in the seventh edition of the Encyclopædia Britannica. 1 vol. 8vo. Edinburgh, 1837.

2941 Cauchy (A. L.). Mémoire sur la dispersion de la Lumière.

1 vol. 4to. Paris, 1830.

2942 Coddington (Henry). Elementary Treatise on Optics. 2d edition.

1 vol. 8vo.

Cambridge, 1825. 2943 Coddington (Henry). A Treatise on the Reflexion and Refraction of Light. 1st and 2d parts of a System of Optics.

1 vol. 8vo. Cambridge, 1829-30.

2944 Emerson (W.). Elements of Optics, in four Books.

1 vol. 8vo. London, 1768.

2945 Herschel (J. F. W.). Traité de la Lumière; traduit de l'Anglais, avec notes par P. F. Verhulst et A. Quetelet. (Vol. 1st only.)

1st vol. 8vo.

Paris, 1829. 2946 Hugenii (Christiani). Opuscula posthuma, qui continet Dioptricam, commentarios de vitris figurandis. 1 vol. 4to. Amst., 1728.

2947 Instruction sur les instrumens à Réflexion.

1 8vo. pamphlet. Paris, 1825. 1 8vo. pamphlet. No date.

2948 Instruction sur les Cadrans solaires. 2949 Karsten (W. J. G.). Optik, Perspectiv und die Photometrie. See Karsten, No. 2223.

2950 Lacaille. Traité d'Optique. 2me édition.

1 vol. 8vo. Paris, 1808. 2951 Lambert (J. H.). Photometria; sive, de mensura et gradibus luminis Colorum et Umbrae. 1 vol. 8vo. Aug. Vindel, 1760. 2952 Lloyd (Humphrey). Treatise on Light and Vision.

1 vol. 8vo. London, 1831.

2953 Lloyd (Rev. H.). Lectures on the Wave-Theory of Light. 1 vol. 8vo.

Dublin, 1841. 2954 Malus (E. L.). Théorie de la double réfraction de la Lumière dans les substances cristallisées. 1 vol. 4to. Paris, 1810. 1 vol. 8vo. London, 1759.

2955 Martin (B.). New Elements of Optics. 2956 Newton. Construction d'un Telescope. 1 vol. 12mo. Amsterdam, 1741. 2957 Newton (Isaac). Optice; sive, de reflexionibus, refractionibus, inflexionibus. et Coloribus Lucis, Libri III. 1 vol. 4to. Londini, 1706. 2958 Powell (Baden). A General and Elementary View of the Undulatory Theory, as applied to the Dispersion of Light, and some other subjects. 1 vol. 8vo. London, 1841. 2959 Pritchard (Andrew). The Microscopic Cabinet of Select Animated Objects; with a description of the Jewel and Doublet Microscope, Test Objects, &c. 1 vol. 8vo. London, 1832.

2960 Smith (Robert). A Complete System of Optics.

2 vols. 4to. Cambridge, 1738.

2961 Smith (Robert). Cours Complet d'Optique; traduit de l'Anglais.

2 vols. 4to. Avignon, 1767.

2962 Whiston (William). A Course of Mechanical, Magnetical, Optical, Hydrostatical, and Pneumatical Experiments. 1 vol. 4to. No date. 2963 Wood (James). The Elements of Optics.

4th edition.

1 vol. 8vo. Cambridge, 1818.