[MATHEMATICS]. EUCLID. -- BYRNE, Oliver. The First Six Books of the Elements of Euclid in which Coloured Diagrams and Symbols are used instead of Letters for the Greater Ease of Learners. London: William Pickering, 1847. 4o (233 x 185 mm). Half-title. Color diagrams throughout printed in red, blue, yellow and black; wood-engraved initials. (Heavy spotting throughout.) Original red cloth decorated in blind and gilt, all edges gilt (rebacked, scuffed at the extremities). FIRST EDITION OF BYRNE'S WORK ON EUCLIDEAN GEOMETRY, in which five colors are used to illustrate the Euclidian principles. Friedman 43; Ing Charles Whittingham Printer 46; Keynes Pickering pp. 37, 65; McLean Victorian Book Design p. 70; PMM (1963) part 2, 150. -- DE MORGAN, Augustus. Arithmetical Books from the Invention of Printing to the Present Time being Brief Notices of a Large Number of Works drawn up from Actual Inspection. London: Taylor and Walton, 1847. 8o. Contemporary half calf, marbled paper boards, gilt (extremities scuffed). Provenance: Theo L. De Vinne (bookplate); H.P. Kraus (reference library bookplate). FIRST EDITION. An extensive bibliography of about 500 books compiled by the influential mathematician de Morgan who "wrote textbooks on the elements of arithmetic, algebra, trigonometry, calculus, complex numbers, probability, and logic. These books are characterized by meticulous attention to detail, enunciation of fundamental principles, and clear logical presentation" (DSB). -- RAMCHUNDRA and DE MORGAN. A Treatise on Problems of Maxima and Minima, solved by Algebra. With a Preface by Augustus de Morgan. London: Wm. H. Allen & Co., 1859. 8o. 8 plates. Original blue cloth decorated in blind, lettered in gilt (extremities lightly rubbed, one or two minor marks). Provenance: John Warner (signature on title-page); Academy of Natural Sciences, Philadelphia (cancelled bookplate); California Academy of Sciences (cancelled bookplate). FIRST ENGLISH EDITION originally published in Delhi in 1850, and published in London at de Morgan's instigation. -- PEIRCE, Benjamin. An Elementary Treatise on Plane & Spherical Trigonometry. Boston: James Munroe and Company, 1845. 8o. 14pp. publisher's advertisements at end. 5 folding plates (spotted and with a few pale stains). (Preliminaries spotted and with a few pale stains.) Contemporary speckled sheep, gilt (extremities rubbed). Provenance: J.D. Graham, Lt-Colonel, U.S. Army (signature dated 1850). Third edition, with additions. -- PIKE, Nicolas. The New Complete System of Arithmetic, Composed for the Use of the Citizens of the United States... Abridged for the Use of Schools. Worcester: Isaiah Thomas, 1798. 12o. (Browned and spotted.) Contemporary mottled sheep, gilt (extremities rubbed). Provenance: Peleg Arnold (numerous signatures dated 1809); Marcus Tiffany (signature title-page); Samuel Buffin(?) (signature and penciled annotations endleaves). Third edition, corrected and enlarged. -- SIMPSON, Thomas. Trigonometry, Plane and Spherical; with the Construction and Application of Logarithms. Philadelphia: Kimber and Conrad, 1810. 8o (199 x 122 mm). 7 folding plates (spotted). Contemporary speckled sheep, gilt. FIRST AMERICAN EDITION. (6)