IXDEX TO YOLVIHES IX. Price One Dollar. 



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CONTENTS 



Page 



Art. XX. — Magnetic Theory of the Solar Corona; by F. H. 



Bigelow . 253 



XXI. — Tertiary Springs of Western Kansas and Oklahoma; 



by C. N. Gould ; : _ 263 



XXII. — Fundamental Propositions in the Theory of Elas- 

 ticity : A study of primary or self-balancing stresses; 



byF. H. Cilley . t 269 



XXIII. — Boiling Point of Liquid Hydrogen, determined by 



Hydrogen and Helium Gas Thermometers ; by J. 



Dbwar 291 



XXIV.— Nature of Vowels ; by E. W. Scripture 302 



XXV. — Behavior of the Phosphorus Emanation in Spherical 



Condensers; by C. Barus _. '. 310 



XXVI. — Concretions of Ottawa County, Kansas ; by W. T.' 



Bell .__ . 315 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics— Ammonium Bromide and the Atomic Weight of Nitro- 

 gen. A. Scott: Combustion of Gases, S. Tantar. 317. — Peculiar Blue Color 

 produced when Potassium and Sodium Sulphocyanides are Heated, W. B. 

 Giles: Method of obtaining Crystals of difficultly Crystallizable Substances, A. 

 Rumpler: Elimination of Methane in the Atmosphere. V. Urbain, 318. — 

 Introduction to Modern Scientific Chemistry, Lassar-Cohn: Ausgevvahlte 

 Methoden der Analytischen Chemie, A. Classen, 319. — Radiation Law of Dark 

 Bodies, F. Paschen: Unipolar Induction, B. Hagenbach: Effect of Electricity 

 on Bacteria. A. Macfadyx. 320. — Electric Convection, M. V. Cremieu: Pre- 

 servation of Photographic Records, W. J. S. Lockyer: Eclipse Cyclone and 

 the Diurnal Cyclone, H. H. Clayton, 321. — Attempt to show that the earth 

 being a magnet draws ether with it, W. Rolltns, 322. — Presence of Gallium iu 

 the Sun, TV. N. Hartley and H. Ramage, 323. 



Geology — Geology of the Boston Basin. TV. 0. Crosby: University Geological 

 Survey of Kansas, S. TV. TVilliston, 324. — Orange River Ground-Moraine, A. 

 TV. Rogers and E. H. L. Schwarz, 325. — Founders of Geology, A. Geikie : 

 Gesetz der Wustenbildung in Gegenwart und Yorzeit, J. Walther. 326. 



Zoology — Recent papers relating to the fauna of the Bermudas, 326. — Trans. Conn. 

 Acad. Science : Zoological Results based on Material from New Britain, New 

 Guinea, Loyalty Islands and elsewhere. A. Willey. 330. 



Miscellaneous Scientific Intelligence — Lecons de Physiologie Experimentale, R. 

 Dubois et E. Couvreur, 330. — Webster's International Dictionary, New Edition, 

 331.— The National Standardizing Bureau, 332. 



Obituary — George Mercer Dawsox : Charles Hebmite: Adolphe Chatin: 

 J. C. Agardh, 332. 



