Geometry. 



229 



8870 



Tadiaaer, A[braliam]. Ueber die- 

 jenigen Fiiichen auf denen zwei Scharea 

 geodatischer Linien em conjugiertes 

 System bildea. Diss. Wiirzburg (F. 

 Freudenberger in Komm., Dnick v. 

 J. C. Becker), 1933, (69. mit 1 Tal.). 

 22 cm. 



Tannenberg, W. de. Du problems 

 de Cauchy relatif a une classe particu- 

 liere de surfaces. Paris, C.-R. Acad, 

 sci., 137, 1903, (900-903). 



8840 CONFORM AL AND OTHER 

 REPRESENTATIONS OF SUR- 

 FACES ON OTHERS. 



Grintsn, Alphons J. van der. Dar- 

 stellung der ganzea Erdoberflacbe anf 

 einer kreisformigen Projektionsebene. 

 Petennanns geogr. Mitt., Gotha, 50, 

 1904, (155-159, mit Karte). 



Easner, Edward. Isothermal systems 

 of geodesies. New York, N.Y., Trans. 

 Amer. Math. Soc, 5, 1904, (50 -GO). 



Osgood, W[i]liam] F[ogg]. On the 

 transformation of tlie boundary in the 

 case of conformal mapping. New York, 

 N.Y., Bull. Amer. Math. Soc, (Ser. 2), 9, 

 1903, (233-235). 



Folignac, C. de. On elements con- 

 nected each to each by one or the other 

 of two reciprocal relations. Amer. J. 

 Math., Baltimore, Md., 26, 1904, p61]- 

 414, with text-fig.). 



Rothe, Rudolf. Ueber die geoda- 



tische Abbildung zweier Flachen auf 



einander. Berlin. SitzBer. math. Ges., 

 3, 1904, (57-G2). 



Von der Miihll, Karl. Ueber Kon- 

 forme Abbildung im Raum. Basel, 

 Verb. Natf. Ges., 16, 1903, (158-172). 



Voss, A[urel]. Abbildung imd Ab- 

 wickelung zweier Flachen auf einander. 

 [Encyklopadie d. mathem. Wissen- 

 schaften Bd. 3 D Abt. 6a.] Leipzig, 

 1903, (355-441). 



8850 



DEFORMATION OF 

 SURFACES. 



Barchi, A. Sopra una classe di super- 

 ficie applicabili e sulle loro flessioni. 

 (iiorn. mat., Napoli, 41, 1903. (129- 

 137). 



Blanchi. L. Sulle quadriche coniugate 

 in deformazione. Roma, Rend. Ace. 

 Lincei, (Ser. 5), 12, 1' sem., 1903, (215- 

 224). 



Sulle superficie a linee di 



curvatura isoterme. Roma, Rend. Ace. 

 Lincei, (Ser. 5), 12, 2^ sem., 1903, (511- 

 520). 



Intorno alle superficie 



applicabili sui paraboloidi ed alle loro 

 transformazioni. Torino, Atti Ace. sc, 

 38, 1902-1903, (515-534). 



Fubini, G. Sugli spazi die ammet- 

 tono un gruppo continuo di movimenti. 

 Ann. mat., Milano, (Ser. 3), 8, 1902- 

 1903, (38-81). 



Servant, M. Sur la deformation des 

 surfaces. Paris, C.-R. Acad, sci., 136, 

 1903, (1239-1241). 



8860 ORTHOGONAL AND 



ISOTHERMIC SURFACES. 



Eisenhart, L[uther] P[faliler]. Con- 

 gruences of tangents to a surface and 

 derived congruences. Amer. J. Math., 

 Baltimore, Md., 26, 1904, ([180i-208). 



Three particular systems 



of lines on a surface. New York, 

 N.Y., Trans. Amer. Math. Soc, 5, 1904, 

 (421-437). 



Guicbard, G. Sur les systemes 

 orthogonaux et les systemes cycliques. 

 Ann. sci. Ec norm., Paris, (ser. 3), 20, 

 1903, (81-132, 181-288). 



Peirce, B[enjamin] 0[sgood]. On 

 families of curves which are the lines of 

 certain plane vectors either solenoidal 

 or lamellar. Boston, Mass., Proc. 

 Amer. Acad. Arts. Sci., 38, 1903, 

 ([661J-678). 



8870 HYPERGEOMETRIC CON- 

 FIGURATIONS AND HIGHER 

 ELEMENTS OF HYPERSPACE. 



Elesland, John. On nullsystems in 

 space of five dimensions and their rela- 

 tion to ordinary space. Amer. J. 

 Math., Baltimore, Md., 26, 1904, ([1031- 

 148). 



Ouicbard, C. Sur les systemrs 

 orthogonaux et les systemes cycliques. 

 Ann. sci. Ec. norm., Paris, (ser. 3), 20, 

 1903, (81-132, 181-288). 



