8450 



226 



Geometry. 



Bricaxd, R. Sur une propriete des 

 lignes de coiirbure des surfaces. Nouv. 

 anil, math., Paris, (s^r. 4), 3, 1903, 

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Burgatti, P. Snlle condizioni d'in- 

 teyiabilita di un particolare sistema di 

 equazioiii alle derivate parziali, e loro 

 applicazione a un prohlema di geo- 

 metria. Roma, Rend. Ace. Lincei, 

 (Ser. 5), 12, 1° sem., 1903, (140-147). 



Cesaro, E. Sulla rapreseutazione in- 

 triuseca della superficie. (Sunto del- 

 I'Autore.) Napoli, Rend. Ac. sc, 

 (Ser. 3), 9, 1903, (236-237). 



Crawford, L. A geodetic on a 

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 C'fipeTown, Rep. S. Afric. Ass., 1903, 

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Fubini, G. Sui gmppi di trasfor- 

 niazioni geodetiche. Torino, Mem. Ace. 

 sc, (Ser. 2), 53, 1903, (261-313). 



Guichard. Sur les systemes de deux 

 surfaces dont les lignes de courbure se 

 projettent sur un plan sui vant les memes 

 courbes. Paris, C.-R. Acad, sci., 138, 

 1904, (258-260). 



Sur un groupe de pro- 



blemes de geometrie. Paris, C.-R. Acad, 

 sci., 138, 1904, (466-469). 



Haskins, Charles Nelson. On the 

 invariants of quadratic differential forms, 

 2. New York, N.Y., Trans. Amer. 

 Matli. Soc, 5, 1904, (167-192). 



Enbblaucli, J[ohannes]. Der Gauss- 

 ache Satz vom Kriimmungsmass. Ber- 

 lin, SitzBer. math. Ges., 3, 1904, (76- 

 82)-. 



Korteweg, D[iederik] J[ohannesl and 

 Lange, D[irk] de. Multiple umbilics as 

 singularities of the first order of excep- 

 tion on point-general surfaces. [Curves 

 of curvature in the neighbourhood of 

 single and of double umbilics.] Amster- 

 dam, Proc. Sci. K. Akad. Wet., 7, 1904, 

 (386-394) English; Amsterdam, Versl. 

 Wis. Nat. Afd. K. Akad. Wet., 13, 

 [1904], (387-398) (Dutch). 



Lange, Dirk de. Considerations on 

 single . . . umbilics [and on mul- 

 tiple umbilics as singularities of the first 

 order of exception on point-general 

 surfaces] and on the shape of the curves 

 of curvature in their neighbovirhood. 

 (Dutch) Delft (J. Waltman Jr.), 1904, 

 (87). 22 cm. 



Llitkemeyer, Georg. Ueber . den 

 analytischen Charakter der Integrale 

 von partiellen Differentialgleichungen. 

 [Fliichen von konstauter Gauss'scher 

 Kriimmung.] Diss. Gottingen (Druck v. 

 Dieterich), 1902, (51). 23 cm. 



8460 RECTIFICATION AND 



QU.'VDRATURE OF CURVES; 

 AREAS AND VOLUMES OF 

 SURFACES. 



Ames, L[ewis] D[arwin]. On the 

 theorem of analysis situs relating to the 

 division of the plane or of space by a 

 closed curve or surface. New York, 

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

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Dehn, M[ax]. Zwei Anwendungen 

 der Mengenlehre in der elementaren 

 Geometiie. [Inhaltsgleiche Polyeder.] 

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Dolbnia, 1. P. Sur une application 

 geometrique des integrales pseudoelllp- 

 tiques. (Russe) Moskva, Izv. ObSc. 

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Gomes-Teixeira, F. On the rectifica- 

 tion of Booth's logarithmic ellipse 

 and logarithmic hyperbola. Q. J. Math., 

 London, 36, 1904, (56-60). 



Lampe, E[mil]. Elementare Bemer 

 kungen iiber geometrische Aufgaben aus 

 der Theorie der Maxima und Minima. 

 Berlin, SitzBer. math. Ges., 3, 1904, 

 (62-70). 



Mtiller, Jt'hann Oswald. Ueber die 

 Minlmalelgenschaft der Kugel. Diss. 

 Gottingen (Druck v. Vandenhoeck & 

 Ruprecht), [1903], (52). 24 cm. 



Vogt, Heinrlch. Ueber Gleichheit 

 und Endlichgleichheit von Prismen und 

 Pyramiden. CXXXIX. Programm des 

 Kgl. Frledrichs-Gvmnaslums zu Bres- 

 lau. 1903-1904. Tl 1. Breslau (Ma- 

 ruschke & Berendt), 1904, (XXI, mit 2 

 Taf.). 25 cm. 



8470 



SPECIAL TRANSCENDEN- 

 TAL CURVES. 



Bolza, Oskar. The detennination of 

 the constants in the problem of the 

 brachlstochrone. New York, N.Y., 

 Bull. Amer. Math. Soc, (Ser. 2), 10, 

 1904, (185-188, with text fig.). 



