236 THE ENTOMOLOGIST. 



ture experiments on Araschnia levana and Selene bilunario, 

 showing that by the control of the larva and not the pupa 

 it was possible to produce " first-phase " forms in the second 

 brood, Mr. W. Schaus opened the battle against Professor 

 Poulton, F.R.S., basing his contrary views on the subject of 

 mimicry and its meaning upon observations made during many 

 years passed in the neo-tropical regions of America. Unfortu- 

 nately, after Mr. Schaus had spoken there was no one to take up 

 the cudgels for him. A one-sided contest terminated after further 

 remarks from Mr. R. Trimen, F.R.S., Mr. G. A. K. Marshall, 

 Dr. Dixey, F.R.S., and other recognized British and German 

 authorities on the subject. 



Meanwhile, other Sections were at work (1) upon Bionomics, 

 Physiology, and Psychology, and (2) upon Systematics, many of 

 the most distinguished Continental entomologists assisting, 

 including Dr. W. Horn, of Berlin, M. E. L. Bouvier, of the Paris 

 Zoological Museum, and M. P. Bachmetjew, of Sofia. 



On Friday, August 5th, the morning was once more de- 

 voted to general business, M. Lameere, the President, giving a 

 resume of the work done by the Congress, and the important 

 questions being settled of the time and place of the next 

 meeting. By a large majority it was decided to hold a Triennial 

 Congress, but as this year's proceedings clashed with those of 

 the Zoological Congress, and it is undesirable that this should 

 again occur, it was agreed to accept the kind invitation of the 

 University of Oxford, conveyed through Professor Poulton, and 

 to convene the next international assembly in 1912. The 

 technical work of the Congress, however, was not quite finished, 

 and in the afternoon Sections were at work on " Museology, and 

 the History of Entomology," and Zoogeography ; Mr. J. M. 

 Howlett, F.E.S., among others, speaking on the " Preservation 

 of Collections in Tropical Climates," and Dr. W. J. Holland, 

 F.E.S., of Pittsburg, U.S.A., contributing a valuable paper 

 " On the Conservation of Types in Museums." 



In the evening a banquet at the Taverne Royale, attended by 

 some two hundred members, was made the occasion of some 

 pleasant after-dinner speeches, realizing in every particular that 

 " brevity is the soul of wit," and this brought the formal pro- 

 ceedings to a close, although many of the foreign visitors remained 

 to take part in the charming Saturday excursions to the old 

 Flemish towns, arranged and led by members of the Entomo- 

 logical Society of Belgium, and the Sunday State reception at the 

 historic "Hotel de Ville," by the Mayor and Corporation, His 

 Majesty King Albert being of course prevented from receiving 

 this or any other Congress by reason of the Court mourning. 

 > In conclusion, the writer of this necessarily brief report 

 would like to point out that space alone prevents him from 

 enumerating more precisely the work of the Congress, and 



