KOVEMBEB 18, 1904.] 



SCIENCE. 



673 



nung')> by Dr. Saul Epsteen; Notes; New 

 Publications. 



The November number of tbe Bulletin con- 

 tains the following articles : ' Report of the 

 Eleventh Summer Meeting of the American 

 Mathematical Society,' by Professors M. W. 

 Haskell and H. S. White; 'Eeport of the Oc- 

 tober Meeting of the San Francisco Section,' 

 by Professor G. A. Miller ; ' The Foundations 

 of Mathematics ' (Review of B. Russell's Prin- 

 ciples of Mathematics and Foundations of 

 Geometry), by Dr. E. B. Wilson; Notes; New 

 Publications. 



The General Index of the first thirteen 

 volumes of the Bulletin, 1891-1904, compiled 

 by Dr. Emilie N. Martin, has just been issued 

 as a separate publication. The 80 pages com- 

 prise indexes according to authors, works re- 

 viewed, and subject matter, the last classi- 

 fied according to the Repertoire bibliograph- 

 ique des Sciences mathematiques. There is 

 also an index of all papers read before the 

 Society since 1891. 



The October number (Volume 5, No. 4) 

 of The Transactions of the American Mathe- 

 matical Society contains the following papers: 



F. S. Macaulat : ' On a Method of dealing with 

 the Interseetions of Plane Curves.' 



J. M. Peikce : ' On Certain Complete Systems 

 of Quaternion Expressions, and on the Removal 

 of Metric Limitations from the Calculus of 

 Quaternions.' 



L. P. EiSENHART : ' Three Particular Systems of 

 Lines on a Surface.' 



E. J. WrLCZYNSKi : ' On Ruled Surfaces whose 

 Flecnode Curve intersects every Generator in two 

 coincident Points.' 



J. I. Hutchinson : ' On the Automorphic Func- 

 tions of the Group (0, 3; 2, 6, 6) .' 



H. F. Blichfeldt : ' A Theorem concerning the 

 Invariants of Linear Homogeneous Groups, with 

 some Applications to Substitution Groups.' 



F. MoRLEY : ' On the Geometry whose Element 

 is the 3-Point of a Plane.' 



G. A. Bliss : ' Sufficient Conditions for a 

 Minimum with respect to One-Sided Variations.' 



H. L. RiETZ : ' On Groups in which certain 

 Commutative Operations are Conjugate.' 



M. FRfiCHET : ' Sur les Operations LinSaires.' 

 H. Taber : ' On Hypercomplex Number Systems 

 (first paper ) .' 



This number also contains: Notes and Er- 

 rata, Volumes 1, 3, 4, 5; Table of Contents, 

 Volume 5; Indices by subject matter, authors 

 and numbers. Volumes 1-5. 



The Popular Science Monthly for Novem- 

 ber opens with an account of ' The Interna- 

 tional Congress of Arts and Science,' by 

 Wm. Harper Davis, illustrated by many por- 

 traits of those who participated therein. The 

 rest of the number is devoted to addresses 

 delivered at the congress and includes ' Pres- 

 ent Problems of Inorganic Chemistry,' by Sir 

 William Ramsay ; ' The Light of the Stars,'' 

 by E. C. Pickering; 'Fundamental Concepts 

 of Physical Science,' by Edward L. Nichols; 

 ' The Methods of the Earth Sciences,' T. C. 

 Chamberlin; 'Utilitarian Science,' by David 

 Starr Jordan, and ' The Evolution of the 

 Scientific Investigator,' by Simon Newcomb. 

 In the ' Progress of Science ' the editor briefly 

 reviews the work of the congress and inci- 

 dentally queries whether or not the amount 

 accomplished justified the expenditure. The 

 papers read and meetings held were, after all, 

 but a small part of the good accomplished. 

 As in almost every gathering of scientific 

 men, the real good was the bringing together 

 and meeting of those who participated, and 

 particularly the privilege enjoyed by the 

 younger men of meeting the acknowledged 

 masters in science. Papers may be read at 

 any time, but the men who present them are 

 often names only and devoid of the person- 

 ality that results from actual acquaintance. 



The Museums Journal, of Great Britain, 

 for October, contains for its leading article 

 an account of the ' Norwich Castle Museum,' 

 by Thomas Southwell. The interest of the 

 number, however, centers around a letter by 

 E. Ray Lankester, on ' Museums and Nature 

 Study,' in which he points out most admirably 

 some of the purposes for which museums and 

 their scientific staff exist. In this connection 

 it may surprise some to learn that the British 

 Museum has no lecture hall. 



Another most important article is a com- 

 munication from Luca Beltrami, included 

 under the title ' A Mediaeval Vestment,' in 



