July 22, 1910] 



SCIENCE 



107 



ecology is the study of plants and plant asso- 

 ciations in their relations with the medium 

 (surrounding medium, or environmental con- 

 ditions). 



7. Without giving a deiinition of the fol- 

 lowing words, formation and association, the 

 section recommends the use of " formation " 

 in a wider ecological sense, and " association " 

 in a more restricted, floristic sense. Ex- 

 amples : meadow, prairie, etc., are " forma- 

 tions " ; but an alpine meadow on granitic 

 soil in central Switzerland would be an " asso- 

 ciation." 



8. The decision to publish a dictionary of 

 phyto geographic terminology containing all 

 the pertinent expressions used in phytogeo- 

 graphic and floristic works with original defi- 

 nitions and bibliographical references, and 

 their equivalents in English, French and 

 German. 



9. It is proposed that where such words as 

 zone and region are used in different senses 

 in different countries to employ new and clear 

 expressions. Examples : etage (level, or floor) 

 = Hoherenregion, Tieferenregion of the Ger- 

 mans := Zone altiere zone abyssale of the 

 Erench. 



10. A commission was named for the above 

 purpose consisting of the members of the 

 present commission with many others added, 

 giving the committee power to add still others. 



In the publication of the proceedings of the 

 congress the rules and recommendations 

 adopted at Brussels will be incorporated in 

 their proper place with those adopted at 

 Vienna, the latter being reprinted, so that the 

 rules of nomenclature for plants will be pre- 

 sented in a single and convenient brochure. 



The members of the commission on the 

 nomenclature of the cryptogams are greatly 

 indebted to Dr. Briquet for summarizing in 

 a comprehensive manner the many different 

 and often conflicting views expressed by the 

 specialists of the commission in their pre- 

 liminary correspondence. Dr. Briquet also 

 rendered a most important service in inter- 

 preting the remarks made by different speak- 

 ers in French, English and German so that 

 they were understood by all those present. 



Professor Flahault, Professor Mangin and 

 Professor Engier, who presided over the dif- 

 ferent sessions, performed their duties in such 

 a way as to deserve the hearty thanks of all 

 the members, combining a courteous and 

 affable manner with a strictly business man- 

 agement. W. G. Faklow 



Geo. F. Atkinson 

 Paris, 



May 28, 1910 



PRESENTATION TO PROFESSOR BOLZa 

 When it became generally known that Pro- 

 fessor Bolza was to leave the University of 

 Chicago and return to Germany, a movement 

 was inagurated among his former students to 

 present to him some suitable memorial in- 

 dicative of their sorrow at his loss and their 

 affection for him as a friend and teacher. 

 The response was spontaneous and generous, 

 making it possible to procure a beautiful and 

 costly loving cup, which was presented to 

 Professor Bolza at a dinner held in his honor 

 on Friday, June 11, 1910, at the University 

 Club of Chicago, where were gathered the 

 members of the faculty in the departments of 

 mathematics, astronomy and physics, together 

 with Professor I. U. Nef, Dean Eollin T. 

 Salisbury and President Harry Pratt Judson, 

 representing the University of Chicago, and 

 Dean Thomas F. Holgate, of Northwestern 

 University, representing the American Mathe- 

 matical Society. 



After appropriate addresses by President 

 Judson, Professor Moore and Dean Holgate 

 relative to Professor Bolza's brilliant service 

 at the university since its organization, the 

 student committee represented by Dr. Arnold 

 Dresden, of the University of Wisconsin, in a 

 most touching tribute to Professor Bolza, pre- 

 sented to him the loving cup. Along with the 

 cup was given a beautifully illuminated and 

 bound dedicatory statement with the names of 

 more than one hundred masters, fellows, doc- 

 • tors and other advanced students, including 

 eight present members of the university fac- 

 ulty and representing twenty-six different 

 states and as many colleges and universities 

 in which they are now located. 



