VI CONTENTS. 



Number 94. 



Page 

 Art. XXVI. — New Cone of Mont Pele and the Gorge of the 

 Riviere Blanche, Martinique ; by E. O. IIovey. (With 

 Plates XI-XIV) ^ 260 



XXVII. — Colors of AUotropic Silver ; by J. C. Blake. 282 



XXVIII. — Notes on the Development of the Biserial Arm in 



Certain Crinoids ; by A. W. Grabau 289 



XXIX. — Notes on the Geology of the Hawaiian Islands ; 



by J. C. Brannee. (With Plate XV) 301 



XXX.— Recent Tuffs of the Soufriere, St. Vincent; by E. 



Ho^vE 317 



XXXI. — Discovery of Fossil Insects in the Permian of 



Kansas ; by E. M. Sellards 323 



XXX II. — Note on the Constants of Coronas ; by C. Barus 325 



XXXIII. — Note on a Radio-active Gas in Surface Water ; 



by H. A. Bumstead and L. P. Wheeler . _ 328 



SCIENTIFIC INTELLIGENCE. 



Che in istrij and Physics— 'R&dixim and Heliura, W. Eamsay : Action of Salts 

 of Radium upon Globulins, W. B. Hardy, 329.— Chlorine Smelting with 

 Electrolj^sis, J. Swinburne: Mazza Separator for Gases, Signor Mazza, 

 330. — Double Salt of Potassium and Barium Nitrates, W. K. Wallbridge : 

 Light Waves and their Uses, A. A. Michelson : Sub-Mechanics of the 

 Universe, 0. Eeynolds, 331. 



GcoJofjy and Mineralogy — U. S. Geological Survey, 333.— Correlation of 

 Geological Faunas ; Shifting of Faunas as a Problem of Stratigraijhic 

 Geology. H. S. Williams, 334. — Pseudoceratites of the Cretaceous, A. 

 Hyatt : Publications of the Earthqitake Investigation Committee : The 

 Lilac- colored Spodumene from California, C. Baskerville : Tabellen zur 

 Bestimmung der Mineralien mittels ausserer Kennzeichen von Albin Weis- 

 bach, F. KoLBECK : Purchase of the Siemaschko Collection of Meteorites, 

 335._Meteoritenkunde, E. Cohen: Meteorites from New South Wales, 

 336. 



Miscellaneous Scientific Infelligence — Ostwald's Klassiker der Exakten Wis- 

 senschaften, 336. 



