1893.] 



Presents. 



427 



i.e., on the common chord of the cubic and the conic of closest 

 contact. 



The third tangential of the origin has the coordinates 



U 7 2 :-^U 7 :-(U 7 + <), 



which are independent of V 8 . As is known, this is the corresidual of 

 the eight consecutive points at the origin on all the several cubics for 

 which V 8 is arbitrary. 



The line Y 8 a— IT^ = 0, on which the tangential of the origin lies, 

 passes through (U 7 2 : — U 7 Y S ': — Y 8 2 ), the sixth point in which the 

 osculating conic meets the cubic again. 



The Society adjourned over Ascension Day to Thursday, May 18. 



Presents, May 4, 1893. 



Transactions. 



Bucharest : — Societatii de Sciinte Fizice. Buletinul. Anul I. 

 Nos. 11—12. Anul II. Xos' 1—2. 8vo. Bucuresci 1892-93. 



The Society. 



Dresden : — Verein fur Erdkunde. Jahresbericht. XXII. 8vo. 

 Dresden 1892 ; Litteratur der Landes- und Yolks-kunde des 

 Konigreichs Sachsen. Nachtrag 1. 8vo. Dresden 1892. 



The Society. 



Genoa : — Societa Ligustica di Scienze Naturali e Geografiche. 

 Atti. Yol. II. Yol. III. Num. 3—4. 8vo. Genova 1891-92. 



The Society. 



Graz : — Xaturwissenschaftlicher Yerein. Mittheilungen. Jahr- 



gang 1891. 8vo. Graz 1892. The Society. 



Haarlem: — Musee Teyler. Archives. Yol. IY. Partie I. 8vo. 



Haarlem 1893. The Museum 



Hamburg: — Naturwissenschaftlicher Yerein. Abhandluugen 



Band XII. Heffc 1. 4to. Hamburg 1892-93. The Society. 

 Helsingfors : — Societe de Geographic Fennia. Nbs. 6 — 7, vo. 



Helsingfors 1892. The Society. 



Innsbruck: — Naturwissenschaftlich-medizinischer Yerein. Berichte. 



Jahrgang XX. 8vo. Innsbruck 1893. The Society. 



Kharkoff: — Universite Imperiale. Annales. 1893. Parti. 8vo. 



Kharkov) 1893. The University. 



Kieff- — Societe des JSTaturalistes. Memoires. [Russian.'] Tome 



XII. 8vo. Kiew 1892. The Society. 



La Plata : — Museo. Revista. Tomo III. 8vo. La Plata 1892. 



The Museum. 

 2 h 2 



