VI CONTENTS. 



Page 



X. New Species of Laboulheniacece from various Locali'ies. By 



EoLAND Thaxter 156 



XI. On the Variations of the "■Hall Effect ^^ in Several Metals 



with Changes of Temperature. By Albert L. C lough 

 AND Edwin H. Hall 189 



XII. On the Occlusion of Gases by the Oxides of Metals. By 



Theodore William Richards and Elliot Folgek 

 Rogers 200 



XIII. On Real Orthogonal Substitution. By Henry Taber . . 212 



XIV. On the Formation of Chlor and Brombenzoic A nhydrides. By 



George D. Moore and Daniel F. O'Regan .... 222 



XV. On the Formation of Substituted Benzophenones. By George 



D. Moore and Daniel F, O'Regan 226 



XVI. On the Excursion of the Diaphragm of a Telephme Receiver. 



By Charles R. Cross and Henry M. Phillips . . 234 



XVII. On the Cupriammonium Double Salts. By Theodore Wil- 

 liam Richards and Hubert Grover Shaw . . . 217 



XVIII. Notes on the Oxides contained in Cerite, Saynarskite, Gado- 



linite, and Fergusonite. By Wolcott Gibbs, M. D. . . 260 



XIX. Turmerol. By C. Loring Jackson and W. H. Warren 280 



Proceedings 287 



Biographical Notices : — 



John Montgomery Batchelder, by John Trowbridge .... 305 



Henry Ingersoll Bowditch, by Charles F. P"'olsom 310 



Phillips Brooks, by William R. Huntington 331 



James Bicheno Francis, by William E. \Vorthen 333 



Eben Norton Horsford, by Charles L. Jackson 310 



William Raymond Lee, by John C. Ropes 346 



Lewis Mills Norton, by Thomas M. Drown 348 



Andrew Preston Peabody, bv Edward E. Hale 351 



