SCIENC 



h WEEKLV JOURNAL DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 



OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 



FOR THE ADVANCEMENT OF SCIENCE. 



Friday, November 2, 1906. 



CONTENTS. 



The Concurrence and Interrelation of Yol- 

 canic and Seismic Phenomena: Peofessob 

 Angelo Heilpein 545 



Scientific Books: — 



Wright and Hayford's The Adjustment of 

 Ohservations by the Method of Least 

 Squares with Applications to Geodetic 

 Work: Dr. S. A. Mitchell. Miller's 

 Technik des physikalischen Unterrichts: 

 Peofessoe J. S. Ames 551 



Scientific Journals and Articles 553 



Societies and Academies: — 



The American Philosophical Society. The 

 Society for the Promotion of Agricultural 

 Education 553 



Discussion and Correspondence : — 



The Smithsonian Institution and Research: 

 Peofessob Gael H. Eigenmann. The Mu- 

 tation Theory in Animal Evolution: Db. 

 Chas. B. Davenpoet. The Rigidity of the 

 Earth: De. T. J. J. See. Anatomic 

 Nomenclature: Peofessob Buet G. Wildes. 

 Left -handedness : Peofessob 0. T. Mason. 553 



Special Articles: — 



The Relative Merits of the ' Elimination ' 

 and ' First Species ' Method in fixing the 

 Types of Genera — with special reference to 

 Ornithology: Witmee Stone. Generic 

 Names of Merycoidodonts : Eael S. Doug- 

 lass. Origin of the Depression known as 

 Montezuma's Well, Arizona: Peofessob 

 Wm. p. Blake .^ 560 



Quotations : — 



The Huxley Lecture 568 



Astronomical Notes: — 



Potsdam Photometric Durchmusterung : 

 Peofessob Solon I. Bailey 569 



Botanical Notes: — 



Botany in the St. Louis Congress of 1904^ 

 Two and Three Pistils in Cassia Chamae- 

 crista; Engler's Pflanzenreich : Peofessob 

 Chaeles E. Bessey 571 



Chemical Abstracts 572 



Scientific Notes and News 573 



University and Educational News 576 



MSS. intended for publication and books, etc., intended foi 

 review should be sent to the Editor of Science, Garrison-on- 

 Hudson, K. Y. 



TEE CONCURRENCE AND INTERRELATION 



OF VOLCANIC AND SEISMIC 



PHENOMENA.^ 



The noteworthy occurrences that have 

 latterly so largely engaged the attention of 

 vulcanologists and seismologists, and so 

 deeply impressed the world with the sense 

 of insecurity that attaches to life upon a 

 still unstable planet, make perhaps per- 

 tinent at this time a re-inquiry into some of 

 the general phases of the phenomena as 

 they are thought to be known to us. In 

 announcing certain conclusions in this 

 paper which are at variance with the views 

 held by seemingly the greater number of 

 geologists, or at least the specialists in the 

 fields of inquiry which the paper touches, 

 the author recognizes that the facts or data 

 bearing out his conclusions may be thought 

 ' by some to be presumptive rather than posi- 

 tive ; but, whether so or not, he believes they 

 are of a kind that must be taken account 

 of in whatever phase the inquiry is pur- 

 sued, and that they are at least of equal 

 value with those that are assumed to up- 

 hold the opposed or generally received con- 

 clusions. 



The two most important contributions to 

 our knowledge of volcanic and seismic 



* Paper read before the Tenth International 

 Geological Congress, held in the City of Mexico, 

 September 6, 1906. 



