121 



Webb, Herbert Anthony. On the 

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6535 



■^ On the solution of linear 



difference equations by definite integrals 

 Mess. Math., Cambridge, 34, 1904 

 (40-45). [6020]. 6536 



Weeder, J[an]. Eene nieuwe met;. ode 

 van interpolatie met vereffening, toege- 

 past ter afleiding van stand en gang van 

 het standaarduurwerk der Leidsche 

 sterrenwacht, pendule Hohwii 17, uit 

 de tijdsbepalingen over 1903. [A new 

 method of interpolation with compen- 

 satioh applied to the reduction of the- 

 corrections and the rates of the standard- 

 clock of the observatory at Leyden, 

 Hohwii 17, determined by the observa- 

 tions with the transit circle in 1903.] 

 Amsterdam, Versl. Wis. Nat. Aid. K. 

 .likad. Wet., 13, [1904], (302-322) 

 (Dutch) ; Amsterdam, Proc. Sci. K. 

 Akad. Wet., 7, [1904], (241-262) (Eng- 

 lish). [1630 1640]. 6537 



Weierstrass, K[arl]. przestawial- 

 nosci analitycznej tak zwanych dowol- 

 nych funkcyj argumentjw rzeczy- 

 wistych. [Sur la representation 



analytique des fonctions arbitraires des 

 arguments reels.] Prace niat.-fiz., 

 Warszawa, 15, 1904, (159-195). [3220]. 



6538 



Welisch, S. Fehlerausgleichung nach 

 der Theorie des Gleichgewichtes elas- 

 tischer Systeme. Wien, Zs. Vermess- 

 Wes., 2, 1904, (181-190, 197-210, 213- 

 219, 229-235, 246-253). [1630]. 6539 



Wellstein, J[osef]. Grundziige einer 

 arithmetischen Theorie der algebrai- 

 schen Grossen einer unabhangigen 

 Veranderlichen. Vortrag. Jahresber. D. 

 MathVer., Leipzig, 13, 1904, (112-116). 

 [2870 3620 4010]. 0540 



Wendt, Ernst. Hamilton'sehe Grup- 

 pen. Math. Ann., Leipzig, 59, 1904, 

 (187-192). [1210]. 6541 



Wentworth, G[eorge] A[lbert]. A 

 college algebra. Rev. ed. Teachers' 

 ed. Boston (Ginn & Co.), 1903, (2 + 

 656). 19 cm. [1600]. 6542 



Logarithms, metric mea- 



Wentwortb, G[eorge] A[lbert]. New 

 plane and spherical trigonometrj', sur- 

 veying and navigation Teachers' ed. 

 Boston (Ginn & Co.), 1903, (2 1 + 390, 

 with diagr.). 19 cm. [6830]. 6544 



Plane and spherical tri- 

 gonometry and tables . . . 2d. rev. 

 ed. Boston (Ginn & Co.), 1903, (vii -t- 

 207 + XX + 75, with diagr.). 24 cm. 

 [6830]. 0545 



Plane and spherical tri- 

 gonometry, surveying and tables . . . 

 2d. rev. ed. Boston (Ginn & Co.), 1903, 

 (viii + 304 + 27, XX + 75, withillustr., 

 diagr.). 23.5 cm. [6830]. 6546 



Plane trigonometry 



2d. rev. ed. Boston (Ginn & Co.), 1903, 

 (vi + 141 + 21, with illustr., diagr.). 

 19.5 cm. [6830]. 6547 



Plane trigonometry, sur- 

 veying and tables . . . 2d. rev. ed. 

 Boston (Ginn & Co.), 1903, (vii + 

 238 -f 23 + XX + 75, with illustr., 

 diagr.). 23.5 cm. [6830]. 654S 



Trigonometry, surveying 



and navigation. 2d. rev. ed. Bostoa 

 (Ginn & Co.), 1903, (ix + 419 + 33, 

 with illustr., diagrs.). 19.5 cm. [68301. 



654]) 



Wernicke, P. Ueber den karto- 



graphischen Vierfarbensatz. Math. 



Ann., Leipzig, 58, 1904, (413-426). 



[6420 8070 1620]. 6550 



Westlund, Jacob. On the decom- 

 position of prime numbers in a bi- 

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 Ind., Proc. Acad. Sci., 1900, 1901, 

 (105-103). [2900]. 6.551 



On the congruence 



Bures, and special subjects in advanced 

 algebra. Boston (Ginn & Co.), 1903, 

 (141). 18 cm. [1600J. 6543 



xi^ f* = ], mod. p". 

 New York, N.Y., Bull. Amer. Math. 

 Soc, (Ser. 2), 10, 1903, (78-80). [2870]. 



655-2 

 Weyr, Edouard. Sur le problems 

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 Fran?. Jof^., 6, 1901, (1-9). [8070]. 



(5553 



— Poret differencialn}?. [Die 



Differentialrechnung.] Prag, Shorn. 

 Jedn. Cesk. Math., 5, 1902, (XII, 

 416). [3230]. 6554 



White, H[enry] S[eely]. Linear 

 systems of curves upon algebraic sur- 

 faces. An abstract of three lectures 

 delivered at the Boston Collo|uium, 



