117 



knowledgo of Van <ler Waaln' ij/snrfaci>. 

 Nil. Till' equations of state and the v^- 

 suil'aee in the iinniecliato neigh bour- 

 liood of the eritical state for binary 

 mixtures with a small liroportiou of 

 one of the components]. Amsterdam, 

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

 11, 1903, (063-607), 12, [1903] (69-77, 

 with 1 pi.) (Dutch) Amsterdam, Proc. 

 Sci. K. Akad. Wet., 6, [1903], (59-62, 

 115-122, with 1 pi.) (English); Also: 

 Leiden, Comm. Phvsic. Lab., [1903], 

 Suppl. No. 6 to No. 73-84 (English). 

 [8450]. 4838 



Versluys, W[illem] A[braliam]. De 

 singidariteiten [der focaalkromme] eener 

 vlakke algemeene kromme, die de lijn 

 in het oneindige <t maal raakt en t keer 

 door ieder der imaginaire cirkelpunten 

 op oneindig gaat. [The singularities of 

 the focal curve of a plane general 

 curve, touching the line at infinity 

 <r times and passing t times through 

 each of the imaginary circle-points at 

 infinity]. Amsterdam, Proc. Sci. K. 

 Akad. Wet., 6, 1904, (621-622) 

 .English). [7610 7660 8070]. 4839 



Over de figging der drie 



punten, die een ruimtekromme met 

 haar osculatie-vlak geraeen heeft. [On 

 the position of the three points which 

 a twisted curve has in conmion with 

 its osculating plane]. Amsterdam, Versl. 

 Wis. Nat. Afd. K. Akad. Wet., 12, 

 1904, (710-716) (Dutch) ; Amsterdam, 

 Proc. Sci. K. Akad. Wet., 6, 1904, (622- 

 028) (English). [8440]. 4840 



Drie stellingen over evo- 

 lution van vlakke krommen. [Trois 

 theoremes sur les evolutes des courbes 

 planes]. Handl. Ned. Nat. Geneesk. 

 Congres, 9, 1903, (180-185). .[7610 

 7600 8070J. 4841 



Vidal, C'. Sur cpielques arguments 

 non euclidiens. Enseign. math., Paris, 

 4, 1902, (330-346). [6410]. 4842 



Visconti, E. Alcune nuove dimostra- 

 zioni del teorema di Pitagora. Boll, 

 mat. sc. fis. nat., Bologna, 3, 1902, (49- 

 52). [6810]. 4843 



Visnya, Aladar. A linear helyette- 

 sitesek veges csoportjaihoz tartozo in- 

 varians Herniite-fele alakok osszese- 

 gerol. [Ueber die Gesamtheit der in- 

 varianten Hermite'schen Formen einer 

 endlichen Gruppe linearer Substitu- 

 tionen.j Math. Phys. L., Budapest, 12, 

 1904, (355-371). [1230]. 4844 



Vitali, G. vSopra le ('(pia/.i-ijii diluncii- 

 xiali liueari oniogenee a coefficienti 

 algebrici. Palermo, l»end. Circ. mat., 

 16, 1902, (57-69). [4850]. 4845 



Vivanti, G. Sopra le rotazioni della 

 sfera su se stessa. Mat. pure appl., 

 Citta di Castello, 2, 1902,(1-3). [8020]. 



4846 



Vofft, [Heinrich]. Sur la raethode 

 d'elimination d'Euler. Rev. maht. spec, 

 Paris, 13, 1903, (105-110). [2020]. 4847 



Ueber endlichgleiche Pris- 



nien und Pvramiden. Vortrag . . . 

 Unterrichtsbl. Math., Berlin, 9, 1903, 

 (102-104). [6820 6410]. 4848 



Voigt, W[oIdemar]. G. G. Stokes. 

 Gottingen, Naclir. Ges. Wiss. Geschaftl. 

 Mitt., 1903, (70-80). [0010]. 4849 



Volpi, R. Risoluzione dell' equazione 

 generale del 3° grado. Period, mat., 

 Livorno, 17, 1901-1902, (279). [2430]. 



4850 



Vonderlinn, J. Das Projektions- 

 zeichnen. Tl 4. [In : A. Kleyer, 

 Vollstandig geloste Aufgaben-Sammlung 

 H. 1432, 1433, 1442, 1443, 1450-1463.] 

 Stuttgart, [1901-1902], (1-64). Bremer- 

 haven, [1903], (65-253 -h VIII). [6840]. 



4851 



Vose, George L[eonard]. A graptiic 

 method for solving certain questions in 

 arithmetic, or algebra. (Van Nostrand 

 Science Series, No. 16). 2d ed. New 

 York (D. Van Nostrand Co.), 1902, 

 (62 incl. front., diagr.). 15 cm. [0090]. 



4852 



Voss, Wilhelm. Falsche Wahrschein- 

 lichkeitsrechnung und Zufall. Gaea, 

 Leipzig, 39, 1903, (65-69). [1630]. 4853 



Vries, H[endrik] de. v. Zeeman Gz., 

 P[ieter]. 



Vries, Jan de. Over de harmonische 

 krommen, welke bij een gegeven vlakke 

 kubische kromme behooren. [The 

 harmonic curves belonging to a given 

 jilane cubic curve]. Amsterdam, Versl. 

 Wis. Nat. Afd. K. Akad. ^^'et., 12, 

 [1903], (363-366) (Dutch) ; Amsterdam, 

 Proc. Sci. K. Akad. Wet., 6, [1903], 

 (197-201) (English). [7620]. 4854 



Over stelsels van kegel- 



sueden, die bij involuties op rationale 

 krommen behooren. [On systems of 

 conies belonging to involutions on 

 rational curves]. Amsterdam, Versl. 

 Wis. Nat. Afd. K. Akad. Wet., 12, 1904, 

 (740-742) (Dutch); Amsterdam, Proc. 

 Sci. K. Akad. Wet., 6, 1904, (505-508) 

 (English). [7230 8070 8030]. 4855 



