USEFUL BOOKS ON THIS BRANCH OF SCIENCE.

AGNESI. Analytical Institutions. Trans. London, 1801.

BIOT.-Essai de Géométrie Analytique. Paris, 1813.
BOURCHARLAT.-Théorie des Courbes et des Surfaces. Paris, 1810.
BOURDON.-Application de l'Algèbre à la Géométrie. Paris, 1825.
CLAIRAUT.-Recherches sur les Courbes à double Courbure. Paris, 1731.
CRAMER.-Introduction à l'Analyse des Lignes Courbes. Genève, 1750.
FRANCOEUR.-Course of Pure Mathematics. Trans. Cambridge, 1830.
GARNIER.-Géométrie Analytique. Paris, 1813.

GUA.-Usage de l'Analyse de Descartes. Paris, 1740.

HAMILTON.-Principles of Analytical Geometry. Cambridge, 1826.
HAMILTON.-Analytical System of Conic Sections. Cambridge, 1830.

HYMERS.-Treatise on Analytical Geometry of three Dimensions. Cambridge, 1830.
LACROIX.-Traité Elémentaire de Trigo nométrie, &c. Paris, 1810.

LARDNER-System of Algebraical Geometry. London, 1823.

LEFEBVRE DE FOURCY.-Leçons de Géométrie Analytique. Paris, 1827.
MONGE.-Application de l'Analyse à la Géométrie. Paris, 1809.

NEWTON.-Arithmetica Universalis. Enumeratio linearum tertii ordinis. Vol. i.

Horsley, ed. London, 1779.

PEACOCK.-Examples on the Differential and Integral Calculus. Cambridge, 1820.
PUISSANT.-Recueil de Propositions de Géométrie. Paris, 1824.

REYNAUD. Traité d'Application de l'Algèbre à la Géométrie. Paris, 1819.
STIRLING.-Lineæ tertii ordinis Newtonianæ. London, 1717.

The Elements of Curves. Oxford, 1828.

YOUNG.-Elements of Analytical Geometry. London, 1830.

Cambridge Philosophical Transactions.

Encyclopædia Metropolitana; arts. Conic Sections; Analytical Geometry.
Annales des Mathématiques, par J. D. GERGONNE. Nismes.

Journal de l'Ecole Polytechnique.

Correspondance sur l'Ecole Polytéchnique.

Journal für die reine und angewandte Mathematic, von A. L. CRELLE. Berlin.

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ERRATA.

Page 7, line 1, read Let x = √3 = √2+ 1. In the last figure let A B, BC, and CD each be equal to the linear unit, then A D = √ 3.

ERRATA IN THE FIGURES.

Art. 352. y a

Y!

B

Art. 353. y = x*. See the figure in the same page just above the Art. 353; the letter B should be at the point where the upper curve meets A Y.