Vlll CONTENTS. 



Number 90. 



Page 

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

 lection, Peabody Museum; by J. L. Woetman 419 



XLIII. — Geological Structure of the Southwestern New 



England Region ; by W. H. Hobbs 437 



XLIY. — New Machine for Tracing Speech Curves ; by E. 



W. Scripture ._ _ 447 



XLY. — New Forms of Sperrylite ; by V. Goldschmidt and 



W. Nicol _* _ 450 



XLVI. — Niagara Domes of Northern Indiana ; by E. M. 



Kindle __ 459 



XLVII. — New (?) Meteoric Iron from Augusta Co., Virginia ; 



by H. D. Campbell and J. L. Howe 469 



XL VIII. — Diffusion of Vapor into Nucleated Air ; by C. 



Barus 472 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Solid Fluorine and its combination with Liquid 

 Hydrogen, Moissan and Dewar : Hydrides of Eubidium and Caesium, 

 Moissan : Combustion in Gaseous Mixtures other than Air, Pelet and 

 Jomini, 477. — Non-conductivity of Metallic Hydrides, Moissan : Heat 

 Spontaneously Evolved by Eadium Salts, Curie and Laborde, 478. — Ana- 

 lytical Chemistry, F. P. Treadwell : Beitrage zur Chemischen Physiolo- 

 gie, F. Hofmeister, 479. — Ionization produced by Corpuscles of Radium, 

 J. J. Durack : Condensation of Radio-active effects, Rutherford and 

 Soddy : Radio-active Change, Rutherford and Soddy : Removal of the 

 Potential Difference by Heating in Oil, J. Brown : Thickness of the 

 Liquids formed by Condensation at the Surface of a Solid, G. J. Parks, 

 480.— Speaking Flames, V. Gabritschewski and A. Batschinski : Vorles- 

 ung uber Experimental Physik, A. Kundt, 481. 



Geology and Natural History — New York State Museum, 481. — Geological 

 Survey of New Jersey, H. B. Kummel : Geology and Petrography of the 

 Crater Lake National Park, J. S. Diller and H. B. Patton : Preliminary 

 Report on a part of the Granites and Gneisses of Georgia, T. L. Watson, 

 482. — L'Age Des Formations Sedimentaires de Patagonie, F. Ameghino, 

 483. — Catalogue of Meteorites in the Vienna Museum, F. Berwerth, 486. 

 — Eruption of Colima, 487. — Report on the Eruptions of the Soufriere in 

 St. Vincent in 1902, and on a. Visit to Montague Pelee, in Martinique, T. 

 Anderson and J. S. Fleet : Megablattina Sellards (non Brongniart) ; A 

 Correction : Fauna and Geography of the Maldive and Laccadive Archi- 

 pelagoes, 488. — Catalogue of the Collection of Palaearctic Butterflies formed 

 by the late John Henry Leech, R. South : Determination of the Parallax 

 of the Ten First Magnitude Stars in the Northern Hemisphere, W. L. 

 Elkin, 489. 



Miscellaneous Scientific Intelligence — National Academy of Sciences : Inter- 

 national Catalogue of Scientific Literature : Carnegie Institution of Wash- 

 ington, 490. 



Obituary — Josiah Willard Gibbs. 



