CONTENTS. vii 



Number 71. 



Page 

 Art. XXXV. — Effect of Temperature and of Moisture on 

 the Emanation of Phosphorus, and on a Distinction in 

 the Behavior of Nuclei and of Ions ; by C. Baeus 327 



XXXVI. — Determination of the Heat of Dissociation and of 

 Combustion of Acetylene, Ethylene and Methane ; by 

 W. G. Mixter \ 347 



XXXVII. — Geological Relations and the Age of the . St. 

 Joseph and Potosi Limestones of St. Francois County, 

 Missouri ; by F. S. Nason 358 



XXXVIII. — Cambrian Fossils of St. Francois County, Mis- 

 souri ; by C. E. Beechee 362 



XXXIX. — Discovery of Eurypterid Remains in the Cam- 

 brian of Missouri ; by C. E. Beechee. With Plate VII 364 



XL — Determination of Persulphates ; by C. A. Peters and 



S. E. Moody 36V 



XLI. — Studies of Eocene Mammalia in the Marsh Collection, 



Peabody Museum ; by J. L. Woetman . 3VV 



XLII. — Carboniferous and Permian Age of the Red Beds of 

 Eastern Oklahoma from Stratigraphic Evidence ; by G. 

 I.Adams 383 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics— *New Method for Producing Aniline and the Analogous 

 Bases, Sabatier and Senderens: Existence of Ammonium, 0. Ruff, 387. — 

 Modified Gooch-Crucible, W. C. Heraeus : Eadio-active Lead, Hofmann and 

 Strauss, 388. — Salt of Quadrivalent Antimony, Wells and Metzger: New 

 Method for the Gravimetric Determination of Tellurium, Gutbier : Diffusion of 

 Hydrogen through Palladium, A. Winkelmann: Cathode Rays, W. Seitz. 389. 

 — Photography of the Infra- Red Spectra of the Alkali-metals, H. Lehmann: 

 Ether and Gravitational Matter through Infinite Space. Lord Kelvin. 390 — 

 Nineteenth Century Cloud over the Dynamical Theory of Heat and Light, Lord 

 Kelvin, 391.— Resistance and Electromotive forces of the Electric Arc, W. 

 Duddell, 392. — UDSolved Problems in Low-Temperature Research, A. M. 

 Clerke, 393. 



Geology and M in era logy— Geological Survey of Canada, G. M. Dawson, 394. — 

 Geological Survey of Canada, R. Bell and J. F. "Whiteaves : Geological and 

 Natural History Survey of Minnesota, 1900-1901, N. H. Winchell, 395. — Iowa 

 Geological Survey, S. Calvin: Dragons of the Air, an account of Extinct 

 Flying Reptiles, H. G. Seeley, 396.— Contributions to Mineralogy and Petro- 

 graphy from the Laboratories of the Sheffield Scientific School of Yale Uni- 

 versity, S. L. P enfield and L. Y. Pirsson: Large Phlogopite Crystal, W. H. 

 McNairn, 398. — Handbuch der Mineralogie, C. Hintze, 399. 



Miscellaneous Scientific Intelligence — Meteorite Swarms, A. G. Hogbom, 399. — 

 American Philosophical Society of Philadelphia, 400. 



