CONTENTS. Vll 



Number 275. 



Page 



Art. XLVI. — New England and the Upper Mississippi basin 



in the Glacial period ; by J. D. Dana 327 



XLVIL— Use of the Name "Catskill"; by J. J. Stevenson 330 

 XLVIII.— Finite Elastic Stress-Strain Function ; by G. F. 



Becker 337 



XLIX. — Powellite from a new locality; by G. A. Koentg 



and L. L. Hubbard 356 



L. — Increasing the Frequency of Electrical Oscillations; by 



A. H. Patterson and C. H. Arnold. 359 



LI. — Geology and Petrography of Conanicut Island, R. I. ; 



by L. Y. Pirsson ._ _.. 363 



LII. — Larval Form of Triarthrus ; by C. E. Beecher 378 



LIII. — Rise of the Mammalia in North America; by H. F. 



Osborn _ _ _ 379 



Appendix. — LIV. — Description of Miocene Mammalia ; by 



O. C. Marsh. (With Plates VII-X.) „ _ 407 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics. — Effect of Temperature on the Rotatory Power of Liquids, 

 Aignan: Flame Spectra of Metals, Cochin, 392. — Spectrum given by Nickel- 

 carbonyl, Liveing and Dewar: Optical Properties of Liquid Oxygen, Olszew- 

 ski and Witkowski, 393. — Formation of Ozone from Oxygen, Shenstone and 

 Priest: Nitrocopper, Sabatier and Senderess, 394. — Dictionary of Applied 

 Chemistry, T. E. Thorpe: Connection between ether and matter, Lodge, 395. 

 — Chrono-photographic study of locomotion, M. Marey : Electrical oscillations 

 of very small wave-lengths, Righi, 396. — Theory of electrical waves in wires, 

 A. Elsas: Polarization of ultra red rays by means of metallic gratings, H. E. 

 J. G. du Bois and H. Rubens: Interference of electrical waves in air, Klem- 

 bncic and Czermak, 397. 



Geology and Mineralogy. — Iowa Geological Survey, Vol. I, 1892, S. Calvin, 397. 

 — Note upon some observations on the auriferous Gravel of lacustral origin m 

 the region of Taylorsville, California, J. S. Diller, 398.— Subtropical Miocene 

 fauna in Arctic Siberia, W. H. Dall, 399. — Glaciation of Asia: Two new local- 

 ities for Turquoise, W. E. Hidden, 400. 



Miscellaneous Scientific Intelligence. — North Polar Basin, 403. — Elementary Treatise 

 on Analytical Geometry, W. J. Johnson, 406. 



