524 



SCIENCE 



[N. S. Vol. XLIX. No. 1274 



Woodward, and Professors Birkhoff and Mac- 

 Millan as representatives of the society in the 

 American section of the International Astronom- 

 ical Union. 



The committee on the publication of a mathe- 

 matical year book presented a preliminary report 

 and was continued and asked to make a further 

 report at a future meeting. 



A special feature of the meeting was the reports 

 by Captain Jackson, Dr. Gronwall and Major 

 Veblen ou the work in ballistics at Aberdeen and 

 Washington, which occupied the first part of the 

 afternoon session. The titles of these reports are 

 included in the list of papers below. 



About fifty members aad friends gathered at the 

 midday luncheon; thirty-two attended the dinner 

 at the Faculty Club in the evening. Much satis- 

 faction was expressed at the revival of these pleas- 

 ant occasions. 



The Chicago Section held its regular spring 

 meeting on March 28-29. The San Francisco Sec- 

 tion met at the University of California on April 5. 



The following papers were read at the New 

 York meeting: 



C. J. Keyser: "Concerning groups of dyadic re- 

 lations in an arbitrary field." 



J. K. Whittemore: "Certain functional equa- 

 tions connected with minimal surfaces." 



W. B. Fite : ' ' Linear f imetional differential equa- 

 tions. ' ' 



L. B. Robinson: "Note on a theorem due to 

 Wilczynski. ' ' 



L. B. Robinson: "A curious system of polyno- 

 mials, continued." 



0. E. Glenn: "Covariants of binary modular 

 groups." 



O. E. Glenn: "Modular covariant theory of the 

 binary quartie. Tables" (preliminary report). 



O. E. Glenn: "Invariants of velocity and ac- 

 celeration. ' ' 



F. H. Safford: "Reduction of the elliptic ele- 

 ment to the Weierstrass form." 



Philip Franklin: "Computation of the complex 

 roots of the function P{z)." 



A. R. Schweitzer: "On the history of func- 

 tional equations" (preliminary report). 



E. D. Roe, Jr.: "The irreducible factors of 

 1 + X + ...'-{- a;n-i. Second paper. ' ' 



E. D. Roe, Jr.: "The irreducible factors of a cir- 

 culant. ' ' 



Dunham Jackson: "Small arc computations and 

 related questions." 



T. H. Gronwall: "Qualitative properties of the 

 ballistic trajectory." 



Oswald Veblen: "Progress in design of artillery 

 projectiles. ' ' 



G. D. BirkhofE: "Boundary value and expansion 

 problem for differential systems of the first order. ' ' 



G. D. Birkhoff: "Note on the closed curves de- 

 scribed by a particle moving on a surface in a 

 gravitational field." 



G. D. BirkhofE: "Note on the problem of three 

 bodies." 



Edward Kasner: "A characteristic property of 

 central forces." 



J. F. Ritt : ' ' On weighting factor curves for low 

 elevations. ' ' 



A. C. Lunn: "Some functional equations in the 

 theory of relativity." 



J. R. EQine : ' ' Concerning sense on closed curves 

 in non-metrical plane analysis situs." 



R. L. Moore: "On the most general class L of 

 Frgchet in which the Heine-Borel-Lebesgue theorem 

 holds true." 



H. S. Vandiver: "On the class number of the 

 field U(e'ii^ In") and the second case of Fermat's 

 last theorem." 



F. W. Beal: "On certain points of congruences 

 of circles." 



L. L. Silverman: "Regular transformations of 

 divergent series and integrals." 



T. C. Fry: "The application ,of the modern 

 theories of integration to the solution of differen- 

 tial equations." 



C. A. Fischer: "Completely continuous trans- 

 formations and Stieltjes integral equations." 



Arnold Emch : " On closed curves described by a 

 spherical pendulum." 



H. S. White: "An explicit formula for two old 

 problems. ' ' 



L. P. Eisenhart: "Triply conjugate systems 

 with equal point invariants." 



F. N. Cole, 

 Secretary 



SCIENCE 



A Weekly Journal devoted to the Advancement of 

 Science, publishing the official notices and pro- 

 ceedings of the American Association for 

 the Advancement of Science 



Published every Friday by 



THE SaENCE PRESS 



LANCASTER. PA. GARRISON, N. Y. 



NEW YORK, N. Y. 



Entered in the po«t-«fficc at Lancastir* P«., u mcoikI dau nutter 



