694 



SCIENCE. 



[N. S. Vol. XXIII. No. 592. 



ments of living men and women will be our 

 final criterion of the strength of mental in- 

 heritance, but Dr. Woods's work is an impor- 

 tant contribution to psychology and a most 

 admirable lesson to show that history may 

 become a natural science. 



Edwaed L. Thorndike. 

 Teacheks College, 

 Columbia Univeesity. 



SCIENTIFIC JOURNALS AND ARTICLES. 



To the January-February Journal of Geol- 

 ogy, the opening number of Volimie XIV., 

 Dr. S. W. Williston contributes a paper en- 

 titled ' American Amphiccelian Crocodiles ' 

 and Professor E. S. Tarr an article on ' Gla- 

 cial Erosion in the Finger Lake Eegion of 

 Central New York.' E. C. Andrews, of Syd- 

 ney, New South Wales, discusses ' The Ice- 

 Flood Hypothesis of the New Zealand Sound 

 Basins ' and S. W. McCallie describes some 

 ' Stretched Pebbles from Ocoee Conglomerate.' 

 This article is illustrated by three figures. 

 Professor A. P. Coleman, in a paper entitled 

 ' Pre-Cambrian Nomenclature,' reviews cer- 

 tain features of the report of the committee 

 of American ,and Canadian geologists ap- 

 pointed by the surveys of the two countries 

 to decide upon a suitable nomenclature for 

 the pre-Cambrian formations of the Upper 

 Lakes. The number concludes with an inter- 

 esting editorial on the revival of the Illinois 

 Geological Survey. 



The April number (volume 7, number 2) 

 of the Transactions of the American Mathe- 

 matical Society contains the following articles : 



C. E. Stromquist : ' On geometries in whicli 

 circles are the shortest lines.' 



G. A. Bliss : ' A generalization of the notion of 



Oswald Veblen : ' The square root and relations 

 of order.' 



Edwaed Kasnee : ' The problem of partial 

 geodesic representation.' 



R. P. Stephens : ' On the pentadeltoid.' 



G. A. MiLLEB: 'The groups of order p„ which 

 contain exactly p cyclic subgroups of order pa.' 



W. A. Manning : ' Groups in which a large num- 

 ber of operators may correspond to their inverses.' 



Oswald Veblen and W. H. Busset: 'Finite 

 projective geometries.' 



W. B. FoBD : ' On the analytic extension of func- 

 tions defined by double power series.' 



L. E. Dickson: 'On quadratic, hermitian and 

 bilinear forms.' 



Paul Stackel : ' Die kinematische Erzeugung 

 von Minimalflachen.' 



OsKAE BoLZA : ' A fifth necessary condition for a 



strong extremum of the integral | F(x,y,y') dx.' 



G. A. Bliss and Max Mason : ' A problem in 

 the calculus of variations in which the integrand 

 is continuous.' 



The April number (volume 12, number Y) 

 of the Bulletin of the American Mathematical 

 Society contains : Report of the February 

 Meeting of the Society, by F. N. Cole; Eeport 

 of the Fifty-fifth Annual Meeting of the 

 American Association for the Advancement 

 of Science, by L. G. Weld; 'A Proof of the 

 Fundamental Theorem of Analysis Situs,' by 

 G. A. Bliss; 'Determination of Associated 

 Surfaces,' by Burke Smith; 'Note on the 

 Practical Application of Sturm's Theorem,' 

 by J. E. Wright; ' The Movement for Eeform 

 in the Teaching of Mathematics in Prussia,' 

 by J. W. A. Young; Eeview of Jahnke's 

 Vorlesungen iiber die Vektorenrechnung, by 

 E. B. Wilson; Eeview of Moulton's Introduc- 

 tion to Celestial Mechanics, by A. O. Leusch- 

 ner; Shorter Notices: Borel's Geometric, 

 Premier et Second Cycle, by C. L. E. Moore; 

 Sohiissler's Orthogonale Axonometrie, by Vir- 

 gil Snyder; 'Notes' and 'New Publications.' 



The May number of the Bulletin contains: 

 Eeport of the February Meeting of the San 

 Francisco Section, by G. A. Miller; 'An Ap- 

 plication of the Theory of Differential In- 

 variants to Triply Orthogonal Systems of 

 Surfaces,' by J. E. Wright; 'Surfaces gen- 

 erated by Conies cutting a twisted Quartic 

 Curve and an Axis in the Plane of the Conic,' 

 by Virgil Snyder ; ' Operation Groups of 

 Order p^'"iMi p/»2/i2,' by O. E. Glenn; 'A Defi- 

 nition of Quaternions by Independent Pos- 

 tulates,' by Miss E. L. Carstens ; ' Note on the 

 Heine-Borel Theorem,' by N. J. Lennes; Ee- 

 view of Borel's Legons sur les Fonctions de 

 Variables Eeelles, by J. W. A. Young ; Shorter 

 Notices: Hawkes's Advanced Algebra, by G. 

 D. Olds, Brioschi's Works, by H. S. White, 



