CONTENTS. 



Number 249. 



Page 



Art. XXIII. — The Geological History of the Australian 



Flowering Plants; by E. C. Andrews 1*71 



XXIV.— Mineralogical Notes; by B. K. Emerson 233 



XXV. — A New Tortoise and a Supplementary Note on the 



Gavial, Tomistoma americana; by E. H. Sellards 235 



XXVI. — A Fossil Nutmeg from the Tertiary of Texas; by 



E. W. Bekry 241 



XXVII. — Notes on Devonian Faunas of the MacKenzie 



River Valley; by E. M. Kindle 246 



XXVIII.— New Points on the Origin of Dolomite; by F. M. 



Van Tuyl 249 



XXIX. — Volcanic Domes in the Pacific; by S. Powers 261 



XXX. — New Zinc Phosphates from Salmo, British Columbia; 



by A. H. Phillips 275 



XXXI. — On the Separation of Caesium and Rubidium by the 

 Fractional Crystallization of the Aluminium and Iron 

 Alums and its Application to the Extraction of these 

 Elements from their Mineral Sources; by P. E. Brown- 

 ing and S; R. Spencer 2*79 



SCIENTIFIC INTELLIGENCE. 



Miscellaneous Scientific Intelligence — Collection of Osteological Material 

 from Maclru Picehu, G. F. Eaton, 281. — Geology, Physical and Historical, 

 H. F. Cleland, 282. — Handbook and descriptive Catalogue of the Meteor- 

 ite Collections in the United States National Museum, G. P. Merrill: 

 A Student's Book on Soils and Manures, E. J. Kussell, 283. — Plant Anat- 

 omy, from the Standpoint of the Development and Functions of the Tis- 

 sues, and Handbook of Micro-Technic, W. C. Stevens: Princijales of Plant 

 Culture; a Text for Beginners in Agriculture and Horticulture, E. S. Gopf: 

 Annual Eeport of the Board of Scientific Advice for India for the year 

 1914-15, 284. 



