CONT E N T S . 



Page 

 Art. XXI. — Evolution of the Elephant ; by R. S. Luli 169 



XXII. — Manganese Ore Deposits of Brazil ; by 0. A. Derby 213 



XXIII.— Possible Overflow Channel of Ponded Waters Ante- 

 dating the Recession of Wisconsin Ice ; by E. Carney 217 



XXIV. — Axial Colors of the Steam Jet and of C< ias ; by 



C. Barus . --'.24- 



XXV. — Descriptions of Tertiary Insects, II ; by'T. D. A. 



CoCKERELL 227 



XXVI. — Reduction of Vanadic Acid by Zinc and Magne- 

 sium ; by F. A. Gooch and G. Edgar 233 



XXVII.— Ancient Finger Lakes in Ohio ; by G. D. Hubbard 239 



XXVIII. — Stephanite Crystals from Arizpe, Sonora, Mexico; 



by W. E. Ford 244 



XXIX. — Use of the Filtering Crucible in Electrolytic Analy- 

 sis ; by F. A. Gooch and F. B. Beyer . 249 



SCIENTIFIC INTELLIGENCE. 



Chemistry and, Physics — Phosphorescent Elements, G. Urjbain : Metallic 

 Vacuum Vessels for Liquid Air, J. Dewab : Manganese and the Periodic 

 Law, Eeynolds, 256. — Higher Oxides of Manganese, Meyer and Eotgers : 

 White Phosphorus. Llewellyn, 257. — Eadiorneter for Measurement of 

 Low Pressures, J. Dewar : Existence of Positive Electrons in the Sodium 

 Atom. E. W. Wood : Magnetic Effect of Cathode Eays, E. Klupathy : 

 Practical Physics, W. S. Franklin, C. M. Crawford and B. Macnutt : 

 Praktiscke Photometric, E. Liebenthal, 258. — Principles of Physics, 

 A. P. Gage : Text-book in Physics for Secondary Schools, W. N. Mumper : 

 Laboratory Exercises in Elementary Physics, H. Newman, 259. 



Geology and Mineralogy — Earthquakes, an Introduction to Seismic Geology, 

 W. H. Hobbs, 259. — Glaciers of the Canadian Eockies and Seikirks, W. H. 

 Scherzer : Traite de Geologie, E. Haug, 261. — La Science Seismologique. 

 Les Tremblements de Terre, M. de Ballore : Lower Paleozoic Fossils of 

 the Northern Shan States, Burma, F. E. Cowper Eeed, 262. — Summary of 

 the Geology of India, E. W. Vredenburg : Die Fossilen Insecten, A. 

 Handlirsch : Evolution of Mammalian Molar Teeth to and from the Tri- 

 angular Type, H. F. Osborn : Mineral Eesources of the United States, 

 Calendar Year 1906, 264. — Handbuch der Mineralogie, C. Hintze : Meteor 

 Crater of Canyon Diablo, Arizona, G. P. Merrill. 265. — Foyer Collection 

 of Meteorites, 266. 



Miscellaneous Scientific Intelligence — Introduction to Higher Algebra, M. 

 Bocher, 266. — Observations simultanees de la Surface de Jupiter, 267. — 

 L'Heure a Paris, Jean Mascart : Globus-karte, F. Sipman, 268. 



