438 PEIZE-QUESTIONS OF SCIENTIFIC SOCIETIES. 



Natuurhundige Verhmidelingen, 4to, 3d series, parts 1 and 2 of volume 

 2, contaiuing two memoirs presented by Dr. Bleeker, namely : 



First. Eevision des especes indo-archip61agiqiies dn groupe des A^o- 

 gonini. 



Secondly. Eevision des especes d^Amhassis et de Paramhassis de 1 Inde 

 arcMpelagiqne. 



It lias also presented, through. J. H. van den Broek, the report of the 

 commission appointed by the directors to examine the claims of the 

 candidates for the Huyghens large gold medal. This medal should be 

 awarded, according to the terms of the grant, to the Netherland or for- 

 eign scientist whose researches, discoveries, or inventions in the course 

 of the last twenty years should be deemed to have contributed in a 

 marked degree to the progress of chemistry. 



Agreeably to the recommendation of the commission, composed of D. 

 de Haan, P. J. van Kerchhoff, 0. H. van Ankhum, J. H. van den Broek, 

 A. C. Oudemans, J. M. van Bemmelen, and E. H. von Baumhauer, the 

 society decided that the Huyghens medal should be awarded this year to 

 Auguste Kekule, professor at Bonn, for his interesting researches into 

 the constitution of the carbon-compounds. 



Among the subjects for prize-discussions in 1872 were the following: 



" Find a satisfactory method of determining the temperature, hu- 

 midity, and density of the atmosphere at a considerable height above 

 the surface of the earthy this method should provide for the automatic 

 registry of the observations, or at least their frequent repetition." 



In reply to this question, the society received a memoir written in 

 Italian, and bearing the motto Provando e riprovando. Following the 

 advice of the commission which had been charged with the examination 

 of the work, the assembly decided that it was not entitled to the prize. 



In conclusion, the assembly proceeded to the election of new members 

 of the society. This election resulted as follows : 



NATIONAL MEMBERS. 



C. G. Cobet, professor of philosophy and literature at Leyden. 

 Th. W. Engelmann, professor of medicine at Utrecht. 

 F. W. van Eeden, of Harlem, secretary of the ISTetherland Society for 

 the Encouragement of Industry. 



FOEEIGN MEMBERS. 



A. Kekul6, of Bonn. 



M. P. E. Berthelot, of Paris. 



A. Secchi, of Eome. 



L. Pasteur, of Paris. 



The society has proposed, at this meeting, the following subjects for 



