8080 



Line Geometry. Congruences 



8080 



generated by (1, v) point correspondence in 2 



planes. Visalli, P. Mil. I. Lomb. Ed. 28 



(1895) 114-. 

 2 surfaces with uniform correspondence. 



Pannelli, M. Em. E. Ac. Line. Mm. 6 



(1889) 216-. 

 homaloidal, 3rd degree. Del Ee, A. Mod. Ac. 



Sc. Mm. 1 (1898) 95-. 

 involutory space transformations giving rise to. 



Paolis, R. de. Em. E. Ac. Line. Ed. 1 



(1885) 735-, 754-. 

 Kummer's representation. Weiler, A, Ziir. 



Vjschr. 29 (1884) 366-. 

 of linear complexes, metrical relations. Bobek, 



'K. Wien Ak. Sb. 83 (1881) (Ab. 2) 885-. 

 lines and curves, parallelism. Guichard, C. 



C. E. 128 (1899) 723-. 

 cutting 3 projective pencils. Fries, J. de. 



N. Arch. Wisk. 3 (1898) 222-. 

 Mannheim and Hamilton's formula. PeliSek, 



M. Prag Sb. (1900) (Mth.-Nt.) No. 2, 



14 pp. 

 mean surface a plane. Guichard, C. C. E. 



114 (1892) 729-. 

 metrical property common to 3 special classes. 



Demoulin, A. C. E. 118 (1894) 242-. 

 new principles in theory. Issaly, . [1887] 



Par. S. Mth. Bll. 16 (1888) 19-. 

 of normals. Goursat, E. C. E. 129 (1899) 



669-. 

 , and curvature of surfaces. Mannheim, 



A. C. E. 70 (1870) 1074- ; Liouv. J. Mth. 



17 (1872) 109-. 

 , cyclic systems. Guichard, C. C. E. 



124 (1897) 1079-. 



to surface. Bertrand, J. C. E. 17 (1843) 



1277-. 

 . Laguerre, E. N. A. Mth. 17 



(1878) 181-. 

 , and other congruences. Schlafli, 



L. Bern Mt. (1846) 89-, 111-. 

 of 2nd degree, skew surface formed 



from. Nicodemi, R. Nap. Ac. Pont. At. 26 



(1896) No. 5, 14 pp. 

 and orthogonal systems. Guichard, . C. E. 



125 (1897) 564-. 



of particular type, transformation with aid of. 



Brill, J. [1888] L. Mth. S. P. 20 (1889) 



102-. 



problem. Goursat, E. C. E. 129 (1899) 578-. 

 of rays (3, 1) and (1, 3). Emch, A. A. Mth. 



11 (1896-97) 148-. 

 referred to their developables, and surfaces to 



their asymptotic lines. Guichard, C. Par. 



EC. Norm. A. 6 (1889) 333-. 

 and related functional problem. Hadamard, J. 



Bordeaux S. Sc. PV. (1894-95) 19-. 

 representation on plane. Loria, G. Tor. Ac. 



Sc. At. 21 (1885) 621-. 

 Eoccella's, 3rd order and 3rd class. Hirst, T. 



A. Palermo Cir. Mt. Ed. 1 (1887) 64-. 

 ruled surfaces connected with. Emilio, R. d'. 



Yen. I. At. (1884-85) 1265-, 1911-. 

 and ruled surfaces, theorems. Klug, L. Mh. 



Mth. Ps. 9 (1898) 110-. 

 singular solutions of differential equations. 



Dixon, A. C. [1894] Phil. Trans. (A) 186 



(1896) 523-. 



singular surfaces. Reye, T. Crelle J. Mth. 



97 (1884) 242-. 

 of skew curves. Emch, A. [1900] N. Y. Am. 



Mth. S. Bll. 7 (1901) 243, 249. 

 special kind. Lilienthal, K. von. Mth. A. 31 



(1888) 85-. 

 tangent, of a surface. Waelsch, E. Wien Ak. 



Sb. 102 (1893) (Ab. 2a) 757-. 

 of tangents to given surface, focal surfaces. 



Pell, A. Am. J. Mth. 20 (1898) 101-. 

 theorem, new applications. Halphen, G. H. 



(x) Par. S. Mth. Bll. 1 (1873) 253-. 

 theorems. Fount, G. C. E. 85 (1877) 216-. 

 and theory of surfaces. Cosserat, E. Toul. 



Fac. Sc. A. 7 (1893) N, 62 pp. 

 volume generated by. Roberts, R. A. L. Mth. 



S. P. 19 (1889) 207-. 

 2nd class. Reye, T. Crelle J. Mth. 86 (1879) 



84-. 

 . Visalli, P. Mil. I. Lomb. Ed. 28 (1895) 



264-, 319-. 

 of like class and order. Sturm, R. Crelle J. 



Mth. 101 (1887) 162-. 

 nth degree, represen table on plane. Visalli, 



P. Em. E. Ac. Line. Ed. 4 (1895) (Sem. 1) 



33-. 

 , with singular skew curve of nth degree. 



Visalli, P. Em. E. Ac. Line. Ed. 4 (1895) 



(Sem. 1) 58-. 

 1st order and 1st class. Hermes, O. [1866] 



Crelle J. 67 (1867) 153-. 

 . Fouret, . Par. S. Mth. Bll. 



19 (1891) 58-. 

 , and line complex. Reye, T. 



Crelle J. 69 (1868) 365-. 

 any class. Fouret, G. Palermo Cir. 



Mt. Ed. 6 (1892) 63-. 

 , 2nd and other orders. Kummer, E. E. 



Berl. Ab. (1866) (Mth.) 1-. 

 2nd order. Stahl, W. Crelle J. Mth. 95 



(1883) 297-. 



, with focal or singular lines, classifica- 

 tion. Sturm, R. Mth. A. 36 (1890) 467-. 

 , , . Schumacher, R. 



Mth. A. 38 (1891) 298-. 

 , representation on plane. Montesano, D. 



Palermo Cir. Mt. Ed. 7 (1893) 159-. 

 , singular points, number and position. 



Sturm, R. Gott. Nr. (1888) 468-. 

 and 4th class. Montesano, D. Tor. Ac. 



Sc. At. 27 (1892) 1053-. 

 6th class, 2. Montesano, D. Em. 



E. Ac. Line. Ed. 1 (1892) (Sem. 2) 77-. 

 _, 6th class, 1st species, with focal surface. 



Bertini, E. Em. E. Ac. Line. T. 4 (1880) 30-. 

 3rd order, without singular line. Fano, G. 



Tor. Ac. Sc. At. 29 (1894) 474- ; 31 (1895) 



444_ or 708-. 

 and 3rd class. Hirst, T. A. L. Mth. S. 



P. 16 (1884-85) 232-. 

 6th class in ordinary space. Bordiga, 



G. Em. E. Ac. Line. Ed. 6 (1890) (Sem. 1) 8-. 

 4th order and 2nd class. Stahl, W. Crelle J. 



Mth. 97 (1884) 146-. 

 4th class, etc. Painvin, L. Liouv. 



J. Mth. 19 (1874) 57-. 

 6th order, 2nd class, 1st species. Reye, T. 



Crelle J. Mth. 93 (1882) 81-. 



581 



