246 



SCIENCK 



[N. S. Vol. XI. No. 



present such meu as Osbwald, Roozeboom, 

 Lobry de Bruyn, Spring, Lorenz, Gold- 

 Bchmidt, Du Bois, Bredig, Ikeda, Daw- 

 son, De Hemptinne, HoUeman, Jorissen, 

 Keicber, Var Laar, Wind, Cohen, Meyer- 

 hoffer, and many others ; including a large 

 number of his students and friends. 



The Burgermeister of Rotterdam made 

 an address of welcome, which was followed 

 by a second address by Ostwald. Telegrams 

 were received from all parts of Europe, and 

 cablegrams from America, Japan and Java ; 

 extending congratulations to Van't Hoff. 

 Cohen, who was for a long time Van't Hofif 's 

 assistant in Amsterdam, prepared and pre- 

 sented to Van't Hoff a biographical sketch 

 of the life of the latter, while Meyerhoffer 

 presented the ' Jubelband. ' 



A word in conclusion in reference to this 

 volume. Some two years ago a printed slip 

 was sent to all who had worked with Van't 

 Hoif, inviting them to contribute an original 

 investigation to a volume which would be 

 published and presented to Van't Hoff on 

 the twenty-fifth anniversary of the day on 

 which he received his degree of Doctor of 

 Philosophy. A short time before the vol- 

 ume was published we were notified that it 

 would appear as an extra volume of the 

 Zeitschrift fur physikaUsche Chemie. 



It has thus appeared as volume 31 of 

 this Journal and is known as the ' Jubel- 

 band fiir J. H. Van't Hoff.' Outside of its 

 personal interest to those who have sent 

 contributions, and of its scientific value, 

 it has a linguistic interest. It contains 

 papers in four languages : German, English, 

 French, and Dutch. The papers are evi- 

 dently published in the languages in which 

 they were written by the contributors. The 

 volume contains twenty-six papers in all, 

 most of them from Germany and Holland, 

 but there are a few from England and two 

 from America. 



Thus was celebrated the first quarter of 

 a century of activity of this most brilliant 



man. The history of men of science has 

 few such records. 



Harby C. Jokes. 

 Chemical Laboratory, 



Johns Hopkins University, 

 February 2, 1900. 



THE MEETING OF NATURALISTS AT CHICAGO. 



In response to a call issued December 8, 

 1899, and signed by Professors C. R. Barnes, 

 H. H. Donaldson, S. A. Forbes, W. A. Locy 

 and Jacob Reighard, about thirty natural- 

 ists of the Central States met at the Hull 

 Biological Laboratory, on Thursday and 

 Friday, December 28th and 29th. Among 

 those present, in addition to the Chicago 

 naturalists, were Professors Burrill, Kofoid 

 and Smith, of the Universitj' of Illinois ; J. 

 G. Needham, of Lake Forest ; H. V. Neal ; 

 of Knox College ; Birge, of Wisconsin ; 

 Lee, Nachtrieb and Sigerfoos, of Minnesota ; 

 H. L. Osborne, of Hamline University ; 

 Nutting, of Iowa ; Eigenmann, of Indiana 

 and Reighard and Jennings, of Michigan. 

 Professor Donaldson presided at all the 

 meetings and at the dinner. 



Thursday morning and Friday morning 

 and afternoon were devoted to the reading 

 of papers. Twenty-five titles were an- 

 nounced ; but five of these were omitted 

 through the absence of the naturalists who 

 announced them or through lack of time. 

 Thursday afternoon was devoted to a dis- 

 cussion on * Methods and Results of Limno- 

 logical Work.' Professors Birge and Kofoid 

 opened the discussion, in which Professors 

 Reighard, Nachtrieb, Eigenmann, Osborn 

 and Davenport also took part. The papers 

 of Professors Birge and Kofoid follow this 

 report. On Thursday evening a dinner 

 was held at the Quadrangle Club, and was 

 attended by thirty persons. After the 

 dinner the question of organization was 

 considered. Since the American Society of 

 Naturalists simultaneously meeting at New 

 Haven had neither rejected nor adopted the 



