IV CONTENTS. 



Page 

 XI. A Uevision of the Genus Flareria. By J. R. Johnston . . . 277 



XII. On the Lines of Certain Classes of Solenoidal or Lamellar 

 Vectors, Syvunetrical with Respect to an Axis. By B. O. 

 Peiuce 293 



XIII. On the Real Automorphic Linear Transformation of a Real 



Bilinear Form. By Henry Taijeu 305 



XIV. Influence of Occluded Hydrogen on the Electrical Resistance of 



Palladium. By W. E. ]McELFRr.sii 321 



XV. Experiments on the Deviations of Falling Bodies. By Edwin 



II. Hall 337 



XVI. On the Relation of the Hall Effect to the Current Densitg in Gold. 



By Thomas C. McKay 351 



XVII. On Generalized Space Differentiation nf the Second Order. By 



B. O. Peiuce 375 



XVIII. On the Cooj)er Hewitt Mercuri/ Interrupter. By George "W. 



PlKKCK 387 



XIX. Edge Corrections in the Calcidation of the Absolute Capacittj of 



Condensers. By J. G. Coffin 413 



XX. Metabolism and Division in Protozoa. By Amos W. Peters . 439 



XXI. Spectra from the Wehnelt Interrupter. By Harry W. Morse 517 



XXII. Studies on the Transformations of Saturnian Moths, with Notes on 

 the Life-History and Affinities of Brahmaca japonic(t. By 

 Alpheus S. Packard 545 



XXIII. The Significance (f Changing Atomic Vohime. IV. — The Effects 

 of Chemical and Cohesive Internal ]'rcssure. By Theodore 

 William Richards 579 



Records of Meetings 607 



Report of the Council 627 



