7220 201 



Quinn, Joliii James. A development 

 of the conic sections by kinematic 

 methods. Amer. Math. Mon., Spring- 

 field, Mo., 9. 1902, (283-285). 



Trachtenburg, H. L. Tsogonal trans- 

 formation. Math. Gaz., London, 2, 1903, 

 (260-261). 



Weiss, V. Eine Construction einer 

 quadratischen Verwandtschaft zweier 

 ebener Punktfelder aus sieben Paaren 

 entsprechender Punkte. Wien, SitzBer. 

 Ak. Wiss., Ill, 1902, Abth. Ila, (1489- 

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7230 SYSTEMS OF CONICS. 



AUardice, R[obei-t] E[dgar]. On the 

 envelope of the axes of a system of 

 conies passing through three fixed 

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

 Math. Soc, 4, 1903, (103-106). 



Coble, A. B. The quartic curve as 

 related to conies. New York, N.Y., 

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Haller, Stanislaus. Untersuchung der 

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 biischels mit besonderer Beriicksichti- 

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Vries, Jan de. On systems of conies 

 belonging to involutions on rational 

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7240 METRICAL PROPERTIES 

 OF QUADRIC SURFACES. 



Adler, August. Zum Normalenpro- 

 blem der Flachen zweiten Grades. Wien, 

 SitzBer. Ak. Wiss., Ill, 1902, Abth. 

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Anglln. On the osculating parabola 

 of a conic. Mess. Math., Cambridge, 33, 

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Chassiotis, Solon. Note sur la cour- 

 bure des lignes geodesiques d'une sur- 

 face de revolution. Nouv. ami. math., 

 Paris, (ser. 4), 2, 1902, (564-566). 



7260 



Kilbinger. Relations analytiques des 

 spheres et ellipsoides. Enseign. math., 

 Paris, 4, 1902, (327-329). 



Patrassi, P. Le linee asintotiche 

 nelle superficie del 2" ordine. Period, 

 mat., Livomo, 17, 1901-02, (308- 

 312). 



Simon, Max. Analytische Geometrie 

 des Ranmes. (Sanunlung Goschen 89.) 

 2. verb. Aufl. Leipzig (G. J. Goschen), 

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7250 PROJECTIVE PROPERTIES 

 OF QUADRIC SURFACES. 



Bromwicb, T. J. I' A. On the parabolas 

 (or paraboloids) through the points 

 common to two given conies (or quad- 

 rics). NewY^ork, N.Y., Bull. Amer. 

 Math. Soc., (Ser. 2), 8, 1902, (386- 



Coolidge, Julian Lowell. Quadric 

 surfaces in hyperbolic space. New 

 York, N.Y., Trans. Amer. Math. Soc, 4, 

 1903, (161-170). 



Fontene, G. Sur une figure de 

 I'espace deduite des polygenes de Ponco- 

 let. Nouv. ami. math., '(ser. 4), 2, 1902, 

 (545-549). 



Maschke, Heinrich, On superoscu- 

 lating quadric surfaces. New York, 

 N.Y., Trans. Amer. Math. Soc, 3, 1902, 

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Meyer, W. Franz. Ueljer Verallge- 

 meinemngen von Satzen iiber die Kugel 

 und das ein- resp. umbeschriebene 

 Tetraeder. Jahresber. D. MathVer., 

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Simon, Max. Analytische Geometrie 

 des Raumes. (Sammlung Goschen 89). 

 2. verb. Aufl. Leipzig (G. J, Goschen), 

 1903, (205). 16 cm. 0,80 M. 



Sturm, R[udoIf]. Ueber einen ver- 

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7260 SYSTEMS OF QUADRIC 

 SURFACES. 



Bnmside, William. On the coordi- 

 nates of the eighth point common to a 

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 1903, (127-128), 



