Miscellaneous Intelligence. 251 



elected President. The Vice-Presidents chosen for the several 

 sections are as follows : Section A, E. E. Barnard, of Chicago ; 

 Section B, Frank P. Whitman, of Cleveland ; Section C, Edgar 

 F. Smith, of Philadelphia; Section D, M. E. Cooley, of Ann 

 Arbor ; Section E, H. L. Fairchild, of Rochester ; Section F, 

 A. S. Packard, of Providence; Section G, W. G. Farlow, of 

 Cambridge; Section H, J. McKeen Cattell, of New York City; 

 Section I, Archibald Blue, of Toronto. Mr. L. O. Howard, of 

 AYashington, D. C, was elected Permanent Secretary. 



The following is a list of the papers accepted for reading : 



Section A. Mathematics and Astronomy. 



R. S. Woodward: Modification of Eulerian cycle due to inequality of the 

 equatorial moments of inertia of the earth. Integrations of the equations of rota- 

 tion of a non-rigid mass for the case of equal principal moments of inertia. 



A. Macfatclane: A new method of solving certain differential equations that 

 occur in mathematical physics. The theory of quadratic equations. 



T. H. Safford: Psychology of the personal equation. 



G. A. Miller: The simple isomorphism of a substitution group into itself. 



Artemas Martin: On rational right triangles. No. I. 



Virgil Snyder: Condition that the line common to n-\ planes in an x-space 

 may lie on a given quadric surface in the same space. 



J. B. Shaw: Communicative metrices. 



H. B. Newton : Continuous groups of spherical transformations in space. 



A. G-. Greenhill: Stereoscopic views of spherical catenaries and gyroscopic 

 curves. 



F. ET. Bigelow: The importance of adopting standard systems of notation 

 and coordinates in mathematics and physics. 



L. A. Bauer: On the secular motion of the earth's magnetic axis. Simple 

 expressions for the diurnal range of the magnetic declination. 



R. D. Bohanxan: Remarkable complete quadrilateral among the Pascal lines 

 of an inscribed six-point of a conic. 



J. W. Glover: General theorems concerning a certain case of functions 

 deduced from the properties of the Newtonian potential function. 



W. H. Metzler : Compound determinants. 



W. S. Auchincloss: Waters within the earth, and laws of rainflow. 



E. 0. Lovett: The theory of perturbations and Lie's theory of contact trans- 

 formations. 



James McMahon : Some results in integration expressed by the elliptic inte- 

 grals. 



W. P. Durand: The treatment of differential equations by approximate 

 methods. 



Section B. Physics. 



P. P. Whitman and Mart C. Notes : Effect of heat on the elastic limit and 

 ultimate strength of copper wire. 

 A. L. Poley: Arc spectra. 



C. F. Brush : Transmission of radiant heat by gases at varying pressures. 

 Measurement of small gaseous pressures. 



D. C. Miller: Electrical conductivity of certain specimens of sheet glass with 

 reference to their fitness for use in static generators. 



W. A. Rogers: Final determination of the relative lengths of the Imperial 

 yard of Great Britain and the metre des archives. 



S. J. Barnett : Influence of time and temperature on the absolute rigidity of 

 quartz fibers. 



C. D. Child : Discharge of electrified bodies by X-rays. 



F. P. Whitman: On the brightness of pigmented surfaces under various 

 sources of illumination. 



