CONTENTS. Vai 



Number 179. 



Page 



Art. XXXII. — Pleistocene Glaciation and the Coral Reef 



Problem; by K. A. Daly - 297 



XXXIII.— Probable Identity of Podolite with Dahllite ; by 



W. T. SCHALLER 309 



XXXIV.— Identity of Stelznerite with Antlerite ; by W. T. 



SCHALLER - 311 



XXXV. — Electromagnetic Emission Theory of Light ; by J. 



KuNz 313 



XXXVI. — Apparent Variations of the Vertical observed at 

 the Cheltenham Magnetic Observatory ; by J. E. 



BURBANK - 323 



XXXVII. — Tombador Escarpment in the State of Bahia, 



Brazil ; by J. C. Branner 335 



XXXVIII.— Note on the Age of the Tribes Hill Formation ; 



by P. E. Raymond 344 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Metallic Radium, Mme. Cueie and A. Debierne : 

 Separation of Antimony and Tin by Distillation, W. Plato : Essentials 

 of Chemistry, R. P. Williams, 347. — Text-Book of Organic Chemistry, 

 W. A. Notes : Allen's Commercial Organic Analysis, W. A. Davis and 

 S. S. Sadtlee : Analytical Chemistry ; Volume II, Quantitative Analysis, 

 F. P. Treadwell : Ozone and Ultra- Violet Light, E. v. Bahr, 348. — 

 Influence of Pressure xipon the Absorption of Ultra-Red Radiation in 

 Gases, E. v. Bahb : Metallic Radium, Mme. Curie: Wireless Telegraphy, 

 Marconi : New Alloy : Handbuch der Spectroscopic, H. Kayser, 349. — 

 Physical Measurements, A. W. Duff and A. W. Ewell : Der Lichtbogen 

 als Wechselsti-omerzeuger, W. Wagner, 350. 



Geology and Mineralogy — Diverse EfEeets of Glaciation on the Cretaceous 

 Clays, A. C. Hawkins, 350.— The Middle Devonian of Ohio, C. R. Stauf- 

 fer : Palaeoniscid Fishes from the Albert Shales of New Brunswick, L. 

 M. Lambe : Outlines of Geologic History with especial reference to North 

 America, 354. — Paleontology and the Recapitulation Theory, E. R. Cum- 



■ INGS : Ordovician Stromatoporoids, W. A. Parks, 355. — Fossil Plants, 

 A. C. Seward, 356. — Canada, Department of Mines, 357. — Barbierite, W. 

 T. ScHALLER, 358. — Brief notices of some recently described Minerals, 

 359. — Les Roches alcalines de Tahiti, A. Lacroix, 360. 



