8450 



Curvature of Surfaces. Indicatrix 



8450 



Asymptotic lines, condition for representation 

 by plane net. Koenigs, G. Par. S. Phlm. 

 Bll. 4 (1892) 94. 



of conoidal surfaces. Halphen, G. H. 

 Par. S. Mth. Bll. 5 (1877) 134-. 



cubic surfaces, cases. Sucliarda, A. 



Prag Ceske Ak. Fr. Jos. Kz. (Tfida 2) 5 



(1896) Art. 9, 32 pp. ; Mh. Mth. Ps. 8 (1897) 



297-. 

 and curvature of skew surface. Catalan, 



E. C. Liege S. Sc. Mm. 13 (1886) 6-, 12-. 

 f projection. Bioche, . Par. S. Phlm. 



Bll. 6 (1894) (C. E., No. 10) 2. 

 , ruled surface referred to. Koenigs, G. 



C. B. 106 (1888) 51-. 



and their spherical representation. 

 Lelieuvre, . Bll. Sc. Mth. 12 (1888) 126-. 



of surface of 4th degree. Rouche, E. 

 G. E. 84 (1877) 434-. 



Axoids, general property. Mannheim, A. O.K. 

 120 (1895) 671. 



of 2 plane lines. Resal, H. C. E. 120 

 (1895) 484-. 



Balloons, elongated, shape. Espitallier, . 



Isere S. Bll. 25 (1887) 234. 

 Barycentre of curvature of algebraic surfaces. 



Neumann, C. Z. Mth. Ps. 12 (1867) 426-. 

 Capillary surfaces. Brunei, . Bordeaux S. 



Sc. Mm. 3 (1893) xlii-. 



Centre of curvature of plane section, con- 

 struction. Mannheim, A. C. E. 78 (1874) 



959-. 

 Centres of curvature, principal, of confocal 



quadrics. Mannheim, A. E. S. P. 33 (1882) 



421-. 

 , , helical surface of triangular 



thread, construction. Mannheim, A. As. 



Fr. C. E. (1878) 156-. 

 Conjugate lines of surface. Reina, V. Em. 



E. Ac. Line. Ed. 6 (1890) (Sem. 1) 156-, 



203-. 

 Conoids, right, having p l - -p 2 at every point. 



St. Germain, A. de. N. A. Mth. 10 (1871) 



30-. 

 Contact transformations leaving pjp^ unaltered. 



Vivanti, G. Z. Mth. Ps. 37 (1892) 1-. 

 Contour evolutes of axial screw surfaces. 



Tesaf, J. Wien Ak. Sb. 94 (1887) (Ab. 2) 181-. 

 Convexity of portion of surface at every point, 



condition. Bassi, A. G. Mt. 34 (1896) 146-. 

 Curvature of apparent contour. Ocagne, M. d'. 



Brux. S. Sc. A. 19 (1895) (Pt. 1) 99-. 



and Bonnet's functions. Stdckel, P. Leip. 

 Mth. Ps. B. 48 (1896) 478-. 



at given point. Plucker, J. Crelle J. 3 

 (1828) 324-. 



. Lyetnikov, A. V. (xn) Eec. 

 Mth. (Moscou) 2 (1867) (Pt. 2) 1-. 



Curves on confocal quadrics. Rutledge, J. Y. 

 Camb. and Dubl. Mth. J. 5 (1850) 110-. 



osculating surfaces. Tognoli, 0. G. Mt. 

 9 (1871) 367-. 



and surfaces. Transon, (Prof.) A. Par. S. 

 Phlm. PV. (1840) 43-; Liouv. J. Mth. 6 

 (1841) 191-. 



_ '. Watson, H. W. QJ. Mth. 12 (1873) 



318-. 



Curves and surfaces, curvature treated by 



Grassmann's methods. Mehmke, R. Bv. 



Mt. 2 (1892) 65-. 

 , elements of curvature. Mangeot, S. 



Par. EC. Norm. A. 10 (1893) 87-. 

 , infinitesimal theory. Brisse, C. Par. 



EC. Norm. A. 3 (1874) 87-. 



, new relation between curvatures. 

 Hoppe, R. Arch. Mth. Ps. 16 (1898) 112. 



Developoids, centres. Hachette, J. N. P. Par. 



S. Phlm. Bll. (1815) 32. 

 Ellipsoid of revolution and osculating sphere. 



Sanchez, P. C. Mex. S. "Alzate" Mm. 



13 (1900) 405-. 

 Equations, 2 general. Hamilton, W. R. [1865] 



Ir. Ac. P. 9 (1867) 302-. 

 Euler's theorem, generalisation. Jordan, C. 



C. E. 79 (1874) 909-. 

 , relations deduced from. Kummell, C. H. 



Des Moines Anal. 8 (1881) 93-. 

 Evolutes of surfaces. Ribaucour, A. C. E. 



74 (1872) 1399-. 

 , curvature properties. Halphen, G. H. 



,C. E. 80 (1875) 116-. 

 Expression rt-s z , geometrical interpretation. 



Elphinstone, H. W. QJ. Mth. 2 (1858) 74-, 



145-. 

 Extension of Joachimsthal's problem. Main- 



ardi, G. Tortolini A. 3 (1852) 495-. 

 Form of surface at given point. Odin, A. A. 



Laus. S. Vd. Bll. 23 (1888) 59-. 

 Formula, T =/J-RR', and its correlative. 



Issaly, . Par. S. Mth. Bll. 26 (1898) 114-. 

 Formula. Stolp, C. N. Arch. Wisk. 14 (1888) 



201- ; Fschr. Mth. (1887) 754. 

 , Gauss's. Baltzer, R. Leip. B. 18 (1866) 1-. 

 Geometrical errors in theory of functions. 



Jacobi, C. G. J. Crelle J. 16 (1837) 342-. 



memoirs. Dupin, C. Par. EC. Pol. Cor. 

 2 (1809-13) 387-. 



Hypercyclic surfaces, constant curvature. 



Nannei, E. Nap. Ed. 27 (1888) 119-. 

 Indeterminate curvature. Walton, W. Camb. 



and Dubl. Mth. J. 7 (1852) 1-. 



Indicatrix. 



Poincare, H. N. A. Mth. 13 (1874) 449-. 

 Hoza, F. Arch. Mth. Ps. 60 (1877) 371-. 

 Zorawski, K. Krk. Ak. (Mt.-Prz.) Bz. 9 



(1895) 250- ; Crc. Ac. Sc. Bll. (1894) 243-. 

 circular. Lamarle, E. C. E. 61 (1865) 249-. 

 Dupin's, generalisation. Barbier, E. C. E. 



105 (1887) 516-. 

 of normals, determination of surface from. 



Hoppe, R. Arch. Mth. Ps. 59 (1876) 407-. 



order of contact of 2 surfaces. Olivier, T. 

 Par. EC. Pol. J. cah. 25 (1837) 123-. 



parabolic, and theory of singular points. 



Guiraudet, P. [1861] (xn) Lille S. Mm. 8 



(1862) 457-. 

 and principal centres of curvature of quadric. 



Mannheim, A. Liouv. J. Mth. 2 (1896) 



51-. 



radii of curvature of quadric, de- 

 termination. Laguerre, E. Liouv. J. Mth. 

 4 (1878) 247-. 



611 



QQ2 



