456 



SCIENCE 



[N. S. Vol. XXXIV. No. 875 



sions on Tuesday and a morning session on 

 Wednesday. Thirty-two members were in at- 

 tendance. Ex-presidents Thomas S. Fiske 

 and Henry S. White occupied the chair in 

 alternation. The council announced the elec- 

 tion of the following persons to membership 

 in the society: Professor Frederick Anderegg, 

 Oberlin College; Dr. C. E. Brooks, North- 

 western University; Mr. G. G. Brower, Cas- 

 cadilla School; Mr. W. C. Graustein, Har- 

 vard University; Dr. Dunham Jackson, Har- 

 vard University; Mr. W. V. Lovitt, Univer- 

 sity of Washington; Mr. J. C. Eaysworth, 

 Washington University; Mr. L. L. Small, Uni- 

 versity of Washington; Dr. E. B. Stouffer, 

 University of Illinois; Dr. S. E. Urner, Uni- 

 versity of Wisconsin ; Professor J. N. Van der 

 Vries, University of Kansas; Mr. G. W. Web- 

 ster, University of Washington. Twelve ap- 

 plications for membership in the society were 

 received. The total membership is now 658. 



Luncheon was served by the college on both 

 days. On Tuesday evening twenty-nine mem- 

 bers gathered at the usual informal dinner, 

 at the close of which brief remarks were made 

 by Professor BirkhofE on Moore's general an- 

 alysis and by Professor A. G. Webster on wider 

 views in mathematics and physics. Wednes- 

 day afternoon was devoted to an excursion to 

 Lake Mohonk. At the close of the meeting 

 the hospitality of Vassar College was recog- 

 nized by a vote of thanks. 



The following papers were read at the sum- 

 mer meeting: 



Edmund Landau: "Ueber eine idealtheoretisehe 

 Funktion. ' ' 



W. A. Hurwitz: "On the pseudo-resolvent to 

 the kernel of an integral equation." 



W. A. Hurwitz: "On mixed linear integral 

 equations. ' ' 



Elizabeth B. Bennett: "Simply transitive 

 primitive groups whose maximal subgroup eon- 

 tains a transitive constituent of order p- . or pg, 

 or a transitive constituent of degree 5." 



Elorian Oajori: "On a rare book of Michel 

 EoUe and the history of 'KoUe's theorem.' " 



L. C. Karpinski: "The Algebra of Abu Kamil 

 Shoja ben Aslam. " 



F. W. Beal: "Normal congruences determined 

 by centers of geodesic curvature. ' ' 



Arnold Emch: "On the congruence of rays 

 realizing circular transformations between two 

 planes. ' ' 



Joseph Bowden: "The two fundamental rela- 

 tions of the calculus. ' ' 



J. E. Eowe: "Covariant curves of the S* and 



G. A. Miller: "A third generalization of the 

 groups of the regular polyhedra. " 



G. A. Miller : ' ' Some properties of the group of 

 isomorphisms. ' ' 



L. P. Eisenhart : ' ' Minimal surfaces in plane 

 four-space. ' ' 



Arthur Eanum: "On the projective differential 

 geometry of spreads generated by co' flats." 



E. W. Castle : "A graduation of the combined 

 experience table of mortality to Makeham's for- 

 mula by the method of moments." 



S. Lefschetz: "On the existence of loci with 

 given singularities. ' ' 



S. Lefschetz: "On some topological properties 

 of plane curves. ' ' 



Virgil Snyder: "Periodic quadratic transfor- 

 mations in a ternary field. ' ' 



A. G. Webster: "On a new mixed boundary 

 problem in connection with the telegrapher's 

 equation. ' ' 



A. G. Webster: "On the wave potential of a 

 circular ring of sources. ' ' 



A. G. Webster : ' ' Solid viscosity versus elastic 

 hysteresis in the transverse vibration of an elastic 

 bar. ' ' 



G. D. BirkhofE: "New proof of the theorem 

 concerning matrices of analytic functions. ' ' 



G. D. Birkhoff: "On the simplest type of ir- 

 regular singular point. ' ' 



G. A. Bliss : "A generalization of the prepa- 

 ration theorem for a power series in several 

 variables. ' ' 



Oswald Veblen: "On the definition of multipli- 

 cation of irrational numbers." 



H. T. Burgess: "One-parameter groups of con- 

 tact transformations defined on a fixed quadric by 

 a bilinear form. ' ' 



Joseph Bowden : ' ' Making a recitation sched- 

 ule. ' ' 



The next meeting of the society will be 

 held at Columbia University on Saturday, Oc- 

 tober 28. The San Francisco Section will 

 meet on the same day at the University of 

 California. 



F. N. Cole, 

 Secretary 



