1630 



Appendix 



2060 



Errors of observation arising from precon- 

 ception of result. Dufour, C. Laus. Bll. 

 S. Vd. 5 (1856) 99-. 



1635 



Annuities, theory. Hinard, C. A. Cond. 

 Pon. Chauss. 27 (1883) (Pt. 1) 250-. 



2000 

 (See also 8080 Connexes.) 



Linear substitutions, extension of calculus. 

 Stephanos, C. C. R. 128 (1899) 593-. 



2010 



Determinant of Smith and Mansion. Cesdro, E. 



N. A. Mth. 5 (1886) 44-. 

 Determinants, theorems. Anglin, A. H. Par. 



S. Mth. Bll. 15 (1887) 120-. 

 , . Studnicka, F. J. Fschr. Mth. (1898) 



121, 122, 123; (1899)150-. 



2020 



Resultants in spherical trigonometry, concept 

 of. Meyer, F. Crelle J. Mth. 15 (1895) 

 209-. 



2030 



Determination of points and planes after rota- 

 tion about an axis. Hudson, E. W. H. T. 

 Mn. Mg. 12 (1900) 343-. 



Orthogonal coefficients, relation between sys- 

 tems. Hoppe,E. Arch. Mth. Ps. 61 (1877) 111-. 



Rotatory transformations of space. Study, E. 

 Leip. Mth. Ps. B. 42 (1890) 341-. 



2040 



Algebraic forms, Hilbert's theory. Schonflies, 



A. Gott. Nr. (1891) 339-. 

 Concomitants of systems of conies and quadrics. 



Johnson, A. E. L. Mth. S. P. 21 (1891) 432-. 

 Configuration corresponding to connexes, 2nd 



order and 1st class. Krause, E. Mth. A. 



14 (1879) 294-. 

 Invariants of conies and quadrics given by 



motion and similitude groups. Lovett, E. O. 



A. Mth. 11 (1896-97) 33-. 

 Polar constructions. Morley, F. Mth. A. 51 



(1899) 410-. 



operations, numerical formulae. Capelli, A. 

 G. Mt. 21 (1883) 343-. 



rectilinear figures of quadric and cubic. 

 Johnson, A. E. Mess. Mth. 16 (1887) 63-. 



Quadratic equation, discriminant, conditions for 

 circular sections. Dingeldey, F. Crelle J. 

 Mth. 122 (1900) 186-. 



form, homographic transformation into 

 itself. Cayley, A. Ph. Mg. 6 (1853) 326-; 

 7 (1854) 208-. 



functions, simultaneous transformation of 

 two. Campbell, J.E. Mess. Mth. 21 (1892)78-. 



Quaternary connexes (1, 1), linear systems. 

 Lazzeri, G. Rm. R. Ac. Line. Mm. 4 

 (1887) 259-. 



Reduction of general equation of 2nd degree. 

 Boole, J. Camb. Mth. J. 2 (1841) 64-. 



2050 



Binary cubic and quadratic forms, application 

 to skew cubic curves. Pittarelli, G. G. Mt. 

 17 (1879) 260-. 



and conies. Pittarelli, G. G. 



Mt. 21 (1883) 19-. 



forms, representation on skew cubic curves. 

 Sturm, E. Crelle J. Mth. 86 (1879) 116-. 



Covariant geometry of triangle. Morley, F. 

 QJ. Mth. 25 (1891) 186-. 



Discriminant surface, singularities. Hilbert, D. 

 Mth. A. 30 (1887) 437-. 



Equation, 4th order. Eussell, E. [1887] L. 

 Mth. S. P. 19 (1889) 56-. 



Invariants and covariants of function trans- 

 formed by quadratic substitution. Spottis- 

 woode, W. Rm. R. Ac. Line. T. 7 (1883) 218-. 



(Spottiswoode). 



Pittarelli, G. Rm. R. Ac. Line. Rd. 1 

 (1885) 327-, 374-. 



Octahedron, equation. Brioschi, Fr. Rm. R. 

 Ac. Line. T. 3 (1879) 233-.__ 



Poncelet's theorem on ^/a + bx + cx*. Syl- 

 vester, J. J. Ph. Mg. 20 (1860) 307-. 



Solution of differential equation of sources. 

 Hammond, J. Am. J. Mth. 5 (1882) 218-. 



Symbolic notation of binary forms, study of 

 skew cubic curves by. Ovidio, E. d'. [1879] 

 Tor. Ac. Sc. Mm. 32 (1880) 1-. 



2060 



Analytical study of quartic curves. Brioschi, 



Fr. A. Mt. 7 (1876) 202-. 

 Conjugate connexes, theory. Stephanos, C. 



Bll. Sc. Mth. As. 4 (1880) (Pt. 1) 318-. 

 Connex, new element of plane geometry. 



Clebsch, E. F. A. Gott. Nr. (1872) 429-. 

 Connexes (1, 2) and (2, 2), construction. 



Peano, G. Tor. Ac. Sc. At. 16 (1880) 497-. 

 Contravariant (Cayleyan), etc. of cubic curves, 



general properties. Cayley, A. [1856] Phil. 



Trans. (1857) 415-. 

 Covariant curves, Steiner's, Cayley's, etc., 



behaviour at singular points of original 



curve. Wolffing,E. Z. Mth. Ps. 40(1895)31-. 



theory of quartic curves, 



X 2 X 3 + X 3 3 X l + X l 3 X 2 ' 



Brioschi, F, Mil. I. Lomb. Rd. 17 (1884) 



401- ; Rm. R. Ac. Line. T. 8 (1884) 164-. 



Covariants, 2, applied to construction of certain 



curves. Mangeot,S. N.A.Mth.l6(1897) 76-. 



of ternary forms. Gundelfinger, S. A. Mt. 

 5 (1871-73) 223-. 



Curves, decomposition into straight lines. 



Gordan, P. Mth. A. 45 (1894) 410-. 

 Invariants of two conies. Kluyver, J. C. 



As. Fr. C. R. (1887) (Pt. 2) 132-. 

 Tactinvariant of conic and cubic. Lindemann, 



F. B. A. Rp. (1884) 647-. 

 Ternary connexes, 1st order and 1st class. 



Battaglini, G. [1880] Nap. Ac. At. 9 (1882) 



No. 4, 16 pp. 



658 



