y\ CONTENTS. 



Number 178. 



Page 



Art. XXIV. — Nature of the Ionization Produced by a Rays; 



by F. E. Wheelock 2.33 



XXV. — Geology of the Serra do Mulato, State of Bahia, 



Brazil ; by J. C. Branneb 256 



XXVI. — Australian Meteorite ; by L. L. Smith 264 



XXVII. — Cambrian Conglomerate of Ripton in Vermont ; 



by T. N. Dale. , 267 



XXVIII. — Some Tests upon the Synthetic Sapphires of Ver- 



neuil ; by A. J. Moses 271 



XXIX. — Cretaceous Lycopodium; by E. W. Bebry 275 



XXX. — New Units in Aero-physics ; by A. McAuie 277 



XXXI. — Gageite, a New Mineral from Franklin, New 



Jersej' ; by A. H. Phillips 288 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Carbon Monosiilphide, J. Dewar and H. 0. Jones, 

 285. — Action of Carbon-Tetrachloride upon heated Anhydrides, Oxides, 

 and several Minerals, Camboulives : New Method for Separating Tin and 

 Antimony, Fischer and Thiele, 286. — Manufacture of Ethyl Alcohol 

 from Sawdust, A. Classen, 287. 



Oeology and Natural History — California Earthquake of April 18, 1906 ; 

 The Mechanics of the Earthquake, H. F. Eeid, 287.— West Virginia Geo- 

 logical Survey, G. P. Grimsley : Supplementary Investigation in 1909 of 

 the Earth and Isostasy, J. F. Hatford, 290.— Gold Hill Mining District 

 of North Carolina, F. B. Laney, 291. — University of Illinois Bulletin : 

 New Bureau of Mines of the United States Geological Survey, 292. — Evolu- 

 tion and Function of Living Purposive Matter, N. C. Macnamara : Dis- 

 cussion on the Origin of Vertebrates, 293. — The Vegetable Proteins, T. B. 

 Osborne : The Science and Philosophy of the Organism, H. Driesch, 294. 



Miscellaneous Scientific Intelligence — British Association for the Advance- 

 ment of Science, 294. — Carnegie Institution of Washington : Les Theories 

 Modernes du Soliel, J. Bosler, 295.— Celestial Ejectamenta, H. Wilde: 

 Elementary Dynamics for Students of Engineering, E. S. Ferry, 296. 



