CONTENTS. Vll 



Number 221. 



Art. XXX. — Reef Formations of the Northeast Coast of 



Brazil ; by G. A. Waring. (With Plate IX) 367 



XXXI. — Note on a New Meteoric Iron from Mount Edith, 



Ashburton District, West Australia; by W. M. Foote. 391 



XXXII. — Occurrence of Molybdenum in Rocks with special 



reference to those of Hawaii; by J. B. Ferguson 399 



XXXIII.— Fruits of a Date Palm in the Tertiary Deposits of 



Eastern Texas; by E. W. Berry . 403 



XXXIV. — Separation of Titanium from Iron, Aluminum, 

 and Phosphoric Acid with the Aid of the Ammonium 

 Salt of Nitrosophenylhydroxylamine ("Cupferron "); by 

 W. M. Thornton, Jr. 407 



XXXV. — New Features in the Geology of Northwestern 



Spitzbergen ; by O. Holtedahl ._ 415 



XXXVI. — Permian Geology of Northern Brazil; by M. A. 



R. Lisboa 425 



XXXVII. — Finger Lake Bed in Ashland and Wayne Coun- 

 ties, Ohio, with Tilted Shore Lines; by G. D. Hubbard 444 



XXXVIII. — Remnants of an Old Graded Upland on the 

 Presidential Range of the White Mountains; by J. W. 



GOLDTHWAIT 45 1 



XXXIX. — The Shawangunk Conglomerate and Associated 

 Beds near High Falls, Ulster County, New York; by 

 T. C. Brown 464 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Peculiarity of Nickel and Cobalt Sulphides, A. 

 Thiel and H. Gessner: Dimethyl Phosphates of the Pare Earths, J. C. 

 Morgan and C. James, 475. — Qualitative Chemical Analysis, A. Vorisek: 

 Introduction to Modern Inorganic Chemistry, J. W. Mellor, 476. — Prac- 

 tical Methods of Organic Chemistry, L. Gattermann: Spectrography of 

 Rontgen Pays, M. de Broglie, 477.- — Removal of the Photoelectric Effect 

 of Potassium, Hallwachs and Wiedmann, 478. — Heat of Formation of 

 Hydrogen from Hydrogen Atoms, I. Langmtjir: Thermal Expansion of 

 Quartz Glass, K. Scheel and W. Heuse, 479. — Physics for Technical Stu- 

 dents; Mechanics and Heat, W. B. Anderson: Natural Sources of Energy, 

 A. H. Gibson, 480. — Effect on the Propagation of Electric Waves of the 

 Total Eclipse of the Sun, 21st August, 1914, 481. 



Geology and Natural History — Manual of Petrographic Methods, A. Johann- 

 sen, 482. — History of Land Mammals in the Western Hemisphere: Nomen- 

 clature of certain Starfishes, A. E. Verrill, 483. — Birds of Connecticut, 

 Bulletin No. 20, J. H. Sage, L B. Bishop, and W. P. Bliss, 484.— Letters 

 and Recollections of Alexander Agassiz, with a Sketch of his Life and 

 Work, G. R. Agassiz, 485. 



Obituary— G. W. Hill: G. M. Minchin: J. H. Poynting: A. Salinas, 486. 



