(Sent 9) 
nearly approached. The paired offspring of female (1) were 
probably both hybrids; as also must have been the purple 
male offspring of female (3), which was paired with a recessive 
of the same brood. 
Dr. Dixy further remarked that it would be interesting to 
inquire into the causes of the alleged preponderance of the 
purple form in the Isle of Man. The facts concerning the 
relative abundance of the two forms in different localities 
seemed to suggest that some kind of selection was at work, 
but it was not easy to conjecture what its precise mode of 
operation might be. 
Wednesday, April 10th, 1907. 
Mr. C. O. WaterHousE, President, in the Chair. 
Election of Fellows. 
Mr. Sypnry R. Asupy, of 119, Greenvale Road, Eltham 
Park, Kent; Mr. Artaur Buuuer, F.S.A., of The Old 
Vicarage, Midsomer Norton, Somerset ; Mr. Bernarp H. D. 
Harrison, of Claremont, Ashleigh Road, Barnstaple; and 
Mr. Cuartes Firtpine Jounson, of Mayfield, Binnington 
Crescent, Stockport, were elected Fellows of the Society. 
Obituary. 
The decease was announced of Mr. Jonn Emmerson Rosson, 
Exhibitions. 
SIMILARITY BETWEEN Dry-sEASON FoRMS OF ALLIED PIERINE 
Sprcies.—Dr. F. A. Drxty exhibited male specimens of the 
wet- and dry-season phases of the following African and Indian 
Pierine :— 
Teracolus achine, Cram. T. antigone, Boisd. 
T. omphale, Godt. Huphina nadina, Lue. 
7’. evenina, Wallgrn. H. nerissa, Fabr. 
He remarked that the exhibit illustrated two points :— 
(1) the fact that in Pierine which were subject to seasonal 
