Proponed AUercUioii of iJic Bije-Laws. 



It was announced that a Special Meeting would be called to 

 consider alterations in the Bye-laws proposed by the Council, 

 and these were then read for the first time. Mr. Bethune- 

 Baker proposed that as the first possible opportunity for calling 

 a Special Meeting would be immediately after the ordinary 

 meeting in April, which falls in Easter-week, the Special 

 Meeting should be held immediately before the ordinary 

 meeting on May 5th ; this was seconded by Dr. Marshall and 

 carried. 



Death of a Fellow. 



The President announced the death of Dr. Gordon Hewitt. 



Noiiiination, for FeUoivsliii) of the Royal Societij. 

 He also announced that Dr. R. C. L. Perkins has been 

 nominated for a Fellowship of the Royal Society. 



Exhihilions. 



Seasonal Dimorphism in Androconia. — Dr. F. A. Dixey 

 exhibited some outline drawings showing variation in form 

 between the scent-scales of the spring and summer form of 

 certain butterflies, and remarked on them as follows : — 



" In the year 1901, when I was working at the scent-scales 

 of the Pierinae, I noticed that the plumules of the wet-season 

 form of Teracolus evagore aiUtyone, Boisd., differed from those 

 of the dry-season form of the same species. I made drawings 

 at the time of the respective forms; these have not hitherto 

 been published, but in my presidential address in 1910 1 referred 

 to this observation in the following words — " The scale [of T. 

 antigane] appears to be longer and narrower in the wet-season 

 form than in the dry " (Proc. Eut. Soc. Lond., 1909, p. cii). 



" Mr. F. J. Ball, of Brussels, has lately called my attention 

 to the fact that in a paper published in 1914 (' Annales de la 

 Societe Entomologiqiie de Belgique,' 1914, p. 170) he has 

 described and figured many instances of a similar seasonal 

 variation in the androconia of European butterflies b.'longing to 

 the Lycaeninae, Pierinae and Satyrinae. The first observation 

 in the case of a Lycaenid was made by Dr. Chapman, who 



