CONTENTS. Vll 



Number 209. 



Page 



Art. XXXIX. — Subsidence Phenomena at Kilauea in the 



Summer of 1911 ; by F. A. Perret 469 



XL. — Revision of the Genera of Starfishes of the Subfamily 



Asterinina? ;.by A. E. Verrill 477 



XLI. — Hydrolysis of Esters of Substituted Aliphatic Acids ; 



by W. A. Drushel and E. W. Dean _ _ 486 



XLII. — Dispersion of Metals; by L. P. Wheeler 491 



XLIII. — Minor Constituents of Meteorites ; by G. P. Mer- 

 rill . 509 



XLIV. — Results of a Paleobotanical Study of the Coal-bear- 

 ing Rocks of the Raton Mesa Regkm of Colorado and 

 New Mexico ; by F. H. Knowlton 526 



XLV. — Recent Discovery of Dinosaurs in the Tertiarv ; by 



W. T. Lee _ _" 531 



XLYI. — Some Variations in Two Common Laboratory Ex- 

 periments ; by H. W. Farwell and W. W. Stifler .. 535 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Radio-elements and the Periodic Law, F. Soddy, 

 538. — Determination of Alkalies in Rocks, Y. Krishnayya, 540. — Allen's 

 Commercial Organic Analysis : A Foundation Course in Chemistry for 

 Students of Agriculture and Technology : Osmotic Pressure : Possibility 

 -of Molecular Agitation at the Absolute Zero, A. Einstein and 0. Stern, 

 541. — Electric Carbon Arc at Low Pressure, M. La Rosa, 542. — The Fit- 

 ness of the Environment, 543. — An Introduction to the Mathematical 

 Theory of Heat Conduction : Elements of the Precision of Measurements 

 and Graphical Methods : Electricity, 544. — Elementary Principles of 

 Electricity and Magnetism for Students in Engineering : Methods of 

 Measuring Electrical Resistance, 545. — Stabilitat, Labilitat und Pende- 

 lungen in der Elektrotechnik. 546. 



Geology and Mineralogy — Formation of Coal beds, 546. — Recent and Ter- 

 tiary freshwater Mollusca of the Californian province, 548. — Materialien 

 zu einer Monographic der Halobiidae und Monotidae der Trias : Das 

 Gesetz der Wustenbildung in Gegenwart und Vorzeit : Palaeontologia 

 Universalis : Canada Department of Mines, 550. — Die Erklarende Beschrei- 

 bung der Landformen : Ocean-depth Charts of the Berlin Institut fur 

 Meereskunde, 551. — Volcanoes, their Structure and Significance: Essai 

 sur la genese et revolution des roches, 552. — Atlas der Krystallf ormen, 553. 



Miscellaneous Scientific Intelligence— Carnegie Foundation for the Advance- 

 ment of Teaching, 553. — The Crocker Land Expedition : Transcontinental 

 Excursion of 1912, 554. — The Plant Alkaloids: Household Bacteriology 

 for students in domestic science, 555. — Das Lebensmittelgewerbe : Ein 

 Handbuch fur Nahrungsmittelchemiker, etc. : Manual of Immunity, for 

 Students and Practitioners, 556. — Who's Who in Science ; International, 

 1913 : Descriptive Astronomy, 557. — Algebra for Beginners : Tables and 

 other Data for Engineers and Business Men : Snyder and Hutchinson's 

 Elementary Text-book on the Calculus : Science Reports of the Tohoku 

 Imperial University, Sendai, Japan : Bibliotheca Zoologica II, 558. — 

 Atlas de la Republica de Chile : Prehistoric Period in South Africa : 

 Origin and Nature of Life, 559. 



Obituary — O. D. Allen, 560. 



