30 MATHEMATICS. 



sultant de toutes les speculations, et d'un tableau relatif aux escomptee. 

 12 Mete, 1807. 



DAVIES (GRIFFITH). A key to Bonnycastle's trigonometry, plane and 

 spherical ; containing solutions to all the problems, with references as 

 they stand in the 2nd edition of that work. 8 London, 181 4-. 



. Tables of life contingencies; containing the rate of mortality among 



the members of the Equitable Society, and the value of life annuities, 

 reversions, &c., together with a more extensive scale of premium for 

 life assurances than any hitherto published. 8 London, 1825. 



DAVIES (THOMAS STEPHENS). Conjectures relative to the origin of 

 the numerical hieroglyphics now in use ; (from The Bath and Bristol 

 Magazine, No. vm.) 8 Bath, 1833. 



On the equations of loci traced upon the surface of the sphere, as 



expressed by spherical co-ordinates; from the Transactions of the Royal 

 Society of Edinburgh. 4 Edinburgh, \&S%. 



Researches on spherical geometry, polar triangles, &c. 12 Lon- 

 don, 1833. 



DAVIS (WILLIAM). See Anonymous. Companion to the gentleman's 

 diary. 8 1797. 



See Maclaurin (C.). A treatise on fluxions. 8 1801. 



The gentleman's mathematical companion for the year 1801 (1802- 



1805) ; 2 vols. 8 London. 



DAWES (JOHN). Pantometry, or an attempt to systematize every branch 

 of admeasurement. 8 London, 1797. 



DEALTRY (WILLIAM). The principles of fluxions, for the use of stu- 

 dents. 8 Cambridge, 1810. 



DECHALES (CL. FR. MILLIET). See Milliet Dechales (C. F.). 



DECORE (GODEF. ANT.). Arithmetica universalis summi Newtoni, 

 contracta, illustrata et locupletata; praeeunte logica analitica. 8 Lug- 

 duni Batavorum, 1761. 



DEE (JOANNES). Parallaticse commentationis nucleus. See Digges (T.). 

 Alae seu scalae mathematical 4 1573. 



DEGEN (CAR. FERD.). Canon Pellianus, sive tabula simplicissimam 

 sequationis celebratissimae : y 2 = a x^ + 1, solutionem, pro singulis nu- 

 meri dati valoribus ab 1 usque ad 1000, in numeris rationalibus, iisdem- 

 que integris, exhibens. 8 Haunice, 1817. 



. Tabularum ad faciliorem et breviorem probabilitatis computationem 



utilium enneas. 8 Haunia, 1824. 



DEIDIER ( ). Elemens generaux des principales parties des ma- 

 thematiques necessaires a 1'artillerie et au genie; 2 vols. 4 Paris, 

 1745. 



. L'arithmetique des geometres, ou nouveaux Clemens de mathema- 



tiques, contenant un introduction 1'algebre et a 1'analyse, avec la re- 

 solution des equations du 2 d et 3 me degre ; les raisons, proportions et 

 progressions arithmetiques et geometriques ; les combinaisons; 1'arith- 

 me'tique des infinis ; les logarithmes ; les fractions decimales, &c. 4 

 Paris, 1739. 



. Le calcul differentiel et le calcul integral, expliques et appliques a 



la geometrie; avec un traite contenant la maniere de resoudre les equa- 

 tions, les proprietes des series, les equations qui expriment la nature des 

 courbes, les lieux geometriques, la construction geometrique des equa- 

 tions, et la solution des problemes determines et indtermines. 4 

 Paris, 1740. 

 DEIDIER (). Suite de 1'arithmCtique des geometres. 4 Pom, 1739. 



