April 21, 1905.] 



SCIENCE. 



627 



museums and advantages offered in the way of 

 lectures and material. Among other things 

 it notes the formal turning over of the Cen- 

 tral Section of (he Museum Building on 

 Eastern Parkway to the Institute, and the 

 opening of the Ethnological Hall. 



Bird Lore for March-April contains articles 

 on ' The Cormorants of Great Lake,' by T. 

 Gilbert Pearson ; ' Mark Catesby,' by Witmer 

 Stone; 'The Chimney Swift,' by Guy A. 

 Bailey. There is a list of ' Bird Lore's Ad- 

 visory Councilors ' and the ninth paper on the 

 ' Migration of Warblers,' by W. W. Cooke, a 

 note on ' The Warbler Book ' and a sketch of 

 ' The Worm-eating Warbler,' by Frank L. 

 Burns. There are important book reviews and 

 important matter in the section devoted to 

 ■ Audubon Societies.' In connection with the 

 ' Educational Leaflet ' devoted to the ostrich it 

 would be interesting to know if any of the 

 North African Struihio cameliis are to be 

 found in captivity. All the eggs for sale are 

 those of the South African species S. aitstralis. 



lite Museums Journal of Great Britain for 

 March is a specially interesting number and 

 opens with an article by John MacLauchlan 

 on ' Government Aid to Country Museums,' 

 which shows what has been done in Great 

 Britain. It is interesting to note in connection 

 with the proposed establishment of a ' Welsh 

 National Library and Museum ' that various 

 cities have offered very substantial induce- 

 ments in order to have the institution located 

 in that particular place. There is a notice 

 of David Murray's three volume work, en- 

 titled ' Museums, their History and their Use,' 

 and the balance of the number is given over 

 to notes of many museums, including a notice 

 of the recent appointment of Sir Purdon 

 Clarke to the directorship of the Metro- 

 politan Museum of Art. The very full direc- 

 tory of British museums has advanced as far 

 as Portsmouth. 



SOCIETIES AND ACADEMIES. ' 



THE SAN FRANCISCO SECTION OF THE AMERICAN 

 MATHEMATICAL SOCIETY. 



The seventh regular meeting of the San 

 Francisco Section of the American Mathe- 



matical Society was held at Stanford Univer- 

 sity on February 25, 1905. Fourteen mem- 

 bers of the society were present. A number 

 of other teachers of mathematics living in or 

 near San Francisco attended both of the ses- 

 sions. The following papers were read: 



Professor H. F. Blichfeldt: 'On a theorem 

 due to C. Jordan.' 



Professor H. F. Blichfeldt : ' On the order of 

 tlie collineation-groups in five variables.' 



Professor A. W. Whitney : ' A theorem in the 

 theory of probabilities, and its application to 

 insurance.' 



Professor R. E. Moritz: ' A general theorem on 

 local probability.' 



Professor E. J. Wilczynski: 'Projective dif- 

 ferential geometry of plane curves.' 



Dr. W. a. Manning : ' On the primitive groups 

 of class ten.' 



Professor G. A. Miller: ' Invariant sub-groups 

 of prime index.' 



Professor Irving Stringham : ' A geometrical 

 construction for quaternion products.' 



Professor A. O. Leuschner : ' On the general 

 applicability of the short method of determining 

 orbits from three observations.' 



Professor T. J. J. See : ' On the physical state 

 of the matter of the earth's interior, with consid- 

 erations on terrestrial geology, and on the compara- 

 tive geology of the other planets.' 



In the absence of their authors the papers 

 by Professors Moritz and Wilczynski were 

 I'ead by Professors Leuschner and Haskell, re- 

 spectively. The paper by Dr. Manning was 

 presented by Professor H. C. Moreno. The 

 next meeting of the section will be held at the 

 University of California on September 30, 

 1905. G. A. Miller, 



Secretary of the Section. 



the PHILOSOPHICAL SOCIETY OF WASHINGTON. 



The 598th meeting was held March 18, 1905. 



Mr. F. B. Littell, of the Naval Observatory, 

 read a paper on the ' Progress of the Eros 

 Solar Parallax Campaign.' He told in detail 

 of the elaborate plans of work, of the numer- 

 ous astronomers cooperating in it and of the 

 results thus far obtained. Twenty-eight ob- 

 servatories furnished 6,600 visual observations 

 and thirteen furnished photographic plates; 

 of these, 835 have been measured, reduced and 



