IV V CON^TENTS. 



Xiimber 260. 



Page 



Art. IX. — Physiographic Development of the Tarumai 



Dome in Japan; by Hidezo Simotomai (Tanakadate) . 87 



X. — Lavas of Morro Hill and Vicinity, Southern California; 



by G. A. Waring and C. A. Waeing .. 98 



Xr. — On Tri-Todide and Tri-Bromide Equilibria, especially 

 in Cadmium Solutions ; by R. G. Van Name and W. G. 

 Broavn 105 



XII. — The Environment of the Amphibian Fauna at Linton, 



Ohio; by E. C. Case _.. 124 



XIII. — Some Fossil Beetles from the Sangamon Peat ; by 



H. F. WlCKHAM _ \ 137 



XIV. — Granite in Kansas; by S. Powers . 146 



XV, — A New Method for the Determination of H^^drogen 



Peroxide; b}^ G. S. JxV^iieson... 150 



SCIENTIFIC INTELLIGENCE. 



Geology — The Coral Eeef Problem and Isostasy, G. A. F. Molengraaf, 

 153. — A Study of the Magmatic Sulphide Ores, C. F. Tolmats;, Jr., and 

 A. F. EoGERS : Origin of Massive Serpentine and Chrysotile-Asbestos, 

 Black Lake-Thetford Area, Quebec, E. P. D. Graham, 156. — Contribu- 

 tions to the Knowledge of Eichthofenia in the Permian of West Texas, E. 

 BosE : Contributions to Geology, 157, — Geological Survey of Alabama, 

 E, A. Smith : Bibliography of the Geology and Mining Interests of the 

 Black Hills Eegion, C. C. O'Harra: Story of the Grand Canyon of Ari- 

 zona, N. H. Darton : Bulletin of the XJniversixy of Texas, 1916, No. 66, 

 J. A. Udden, 158. 



Miscellaneous Scientific Intelligence — Food Poisoning, E. 0. Jordan, 158. — 

 Principles of Agricultural Chemistry, G. S, Fraps: The Secretion oi the 

 Urine, A. E. Cushny, 159— Field Museum of Natural History, Annual 

 Eeport of the Director, F. J. V. Skiff: Chemical and Biological Survey of 

 the Waters of Illinois, E. Bartow; British Museum Publications, 100. 



Obituary— T. McK. Hughes : H. T. Kennedy, 160. 



