CONTENTS. 



Number 87. 



Art. XV. — Studies of Eocene Mammalia in the Marsh Col- 

 lection, Peabocty Museum ; by J. L. Woktman 163 



XVI. — Ceric Chromate ; by P. E. Browning and C. P. 



Flora- __ ._ -- 177 



XVII. — Effects of Changes of Temperature on Permanent 



Magnets ; by H. B. Loomis _ _ 179 



XVIII. — Chemical Composition of Axinite ; by W. E. Ford 195 



XIX. — Electrical Conductivity and Absorption of Energy in 



the Electrodeless Discharge ; by B. Davis .. 202 



XX. — Geological Structure of New Mexican Bolson Plains ; 



by C. R. Ketes .._ 207 



XXL — Marine Turtle Archelon. I. On the Structure of the 



Carapace, II. Associated Fossils; by G. R. Wieland_. 211 



XXII. — Ionization of Water and of Phosphorus Nuclei. 



(Supplementary paper) ; by C. Bartts 217 



XXIII. — Method of Demonstrating Newton's Colors by 



Transmitted Light ; by H. N. Davis _ 224 



XXIV. — Amphibole Hudsonite previously called a Pyroxene ; 



by S. Weldman 227 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Crystallized Hydrogen Peroxide, W. Stadel : Fumar- 

 ole Gases from Mount Pelee, Moissan, 233. — New Eeaction for Certain Oxid- 

 izing Agents, L. L. de Koninck : Synthesis of Anhydrous Hydrosulphites, 

 Moissan, 234. — Solubility of Boric Acid in Hydrochloric Acid Solutions, W. 

 Hertz : Preparation of Pure Iron, Skrabal : Beitraege zur Chemischen 

 Physiologie, 235. — Expansion of Melted Quartz, L. Holborn and F. 

 Henning : Purification of Drinking Water by Ozone, Van't Hoff : Dis- 

 turbance-free Torsion Magnetometer, F. Kohlraitsch and L. Holborn : 

 Fatal Effect of Electric Currents of low Potential : Velocity of X-Eays, 

 M. E. Blondlot, 236. — Sound Waves and Electromagnetics, 0. Heavyside : 

 Physical Papers of Henry Augustus Eowland : Laboratory Manual of 

 Physics, H. C. Cheston, P. E. Dean and C. E. Timmerman, 237. 



Geology and Natural History — United States Geological Survey, 237. — Die 

 Alpen in Eiszeitalter, A. Penck and E. Bruckner : Lakes of Southeastern 

 Wisconsin, N. M. Fenneman, 238. — Publications of the Earthquake Inves- 

 tigation Committee in Foreign Languages : Phycologia Boreali-Americana, 

 F. S. Collins, W. A. Setchell and I. Holden ; Fungus Diseases of Stone- 

 Fruit Trees in Australia and their treatment, D. McAlpine, 239. — Das 

 Plankton des Norwegischen Nordmeeres, H. H. Gran : Fauna and Geogra- 

 phy of the Maldive and Laccadive Archipelagoes, J. S. Gardiner, 240. 



Miscellaneous Scientific Intelligence — Eeport of the Secretary of the Smith- 

 sonian Institution for the Year ending June 30, 1902, Langley, 242. 



Obituary — Professor Estevan Antonio Fuertes : Dr. Charles J. Bell : 

 Dr. Antonio d'Achiardi : Sir George Gabriel Stokes, 242. 



