Erratum in August Number. 



Page 168, line 4 from bottom, for e, the thickness of the lens at its centre, 



read ne, the thickness of the lens at its centre. 



Now ready, 8vo, cloth, price 5s. 



MATHEMATICAL T R A C T S.-PART I. 



BY 



F. W. NEWMAN, M.B.A.S., 



Emeritus Professor of University College, London ; Honorary Fellow of 

 Worcester College, Oxford. 



Contents. 

 Tract I. On the Bases of Geometry with the Geometrical Treatment of 



V"=T _ 



Tract II. gives the Geometrical Theory of V — 1 as a First Supplement to 



Elementary Algebra. 

 Tract III. On Factorials, Second Supplement to the same. 

 Tract IV. On Superlinears (ill-called Determinants), Third Supplement. 

 Tract V. Kegister of A - " in Tables ; where A means the series 2, 3, 4, . . . 51 



with some higher integers ; A _n is carried to 20 decimals, and 



n is in each Table 1, 2, 3, . . . until A~ n vanishes. 



Tract VI. Registers x n from #="02 to ^=-50, where x n is carried to 12 de- 

 cimals and n is integer. 



A second volume is planned to follow on " Anticyclics," with Skeleton Tables 

 of Anticyclics, carried to 16 decimals. 



Some other volumes have long been in MSS., and, if the author continues 

 alive and able to superintend them, are intended to appear consecutively. Fuller 

 tables of Anticyclics to 12 decimals have been calculated twice over, indepen- 

 dently; but could not wisely be published without some corroboration from 

 another mind. F. W. NEWMAN. 



Argoli, And. Pandosion Sphaericum. In quo singula in Elemen- 

 taribus regionibus, atque Aetherea, mathematice pertractantur. Ed. 2. 4to, 

 vellum. Patavii. 1653. 12s. 



Cambridge Mathematical Examination Papers: as given at the 

 several Colleges. 2 vols. 8vo, bds. Camb. 1831-2. 12s. 



Descartes, E. Principia Philosophiae, 1672. Specimina Philosophiae, 

 1672. Passiones Animae, 1672. Meditationes de prima philosophia, 1670. Ap- 

 pendix, continens Objectiones quintas et septimas in Meditationes, 1670. Epistola 

 ad D. Grisbertum Voetium. One vol. Sm. 4to, calf. 7s. Qd. 



Desmarest, E. Theorie des Nombres. Traite de 1 'Analyse Indeter- 

 minee du second degre a deux inconnues. 4to, sewed. 1852. 14s. 



Heyelius, John. Selenographia : sive, Lunae Description tarn macu- 

 larum quam motuum diversorum aliarumque omnium vicissitudinum, phasiuinque 

 Lunarium, Telescopii ope deprehensarum, delineatione accurata, atque locupleti, 

 rerum Coelestium auctario exornata. Many plates, &c. Folio, vellum. Gedani. 

 1647. 21s. 



Kepler, J. Tabulae Eudolphinae, quibus astronomicae scientiae, tem- 

 porum longinquitate collapsae Eestauratio continetur; a Phoenice illo Astrono- 

 iuorum Tychone ; ex illustri et generosa Braheorum in Regno Daniae &c. Polio. 

 1627. 30s. 



Kepler, John. Prodromus dissertationum cosmographicarum, continens 

 Mysterium Cosmographicum de admirabili proportione orbium coelestium, &c. 

 Addita est erudita Narratio M. Georgii Joachimi Bhetici, de Libris Revolutionum, 

 atque admirandis de numero, ordine, et distantiis Sphaerarum Mundi hypotbesibus, 

 totiusque Astronomiae restauratoris D. Nicolai Copernici, &c. Folio, calf. Franco- 

 furti. 1621. 25s. 



Autograph of "Le Clerc de BurTon, 1731." 



MACMILLAN AND E0WES, CAMBRIDGE. 



