Cae ') 
Wednesday, April 5th, 1911. 
The Rey. F. D. Morice, M.A., President, in the Chair. 
Hlection of Fellows. 
The following gentlemen were elected Fellows of the 
Society : Messrs. H. W. Davey, Inspector of the Department 
of Agriculture, Geelong, Victoria, Australia; H. Bormnav, 
99 rue de la Céte St. Thibault, Bois de Colombes, Seine, 
France ; Rurus Maturinson, Oakland, Windermere. 
Obituary. 
The PresipENT announced the death of Mr. P. C. T. 
SNELLEN, of Rotterdam, the oldest Honorary Fellow of the 
Society, and moved that an expression of sympathy be for- 
warded to his family ; this was seconded by Mr. Gahan and 
carried unanimously. 
Exhibitions. 
CaNADIAN Prerips.—Mr. Ropert ADKIN exhibited on behalf 
of Mr. Lachlan Gibb of Montreal, Canada, three specimens 
(two males and one female) of a Pieris taken by Mr. Gibb at 
Lost River, Canada, in May 1910, together with series of 
P. oleracea and P. rapae from the same and other Canadian 
localities for comparison. Mr. Gibb, in forwarding the speci- 
mens, had pointed out that the three in question differed from 
P. oleracea in having the body more grey, the base, and in 
the case of the female the apices of the forewings, more 
suffused with grey, and in the female having spotted fore- 
wings; also that their habits in the field were different, in 
that their flight was more robust, and that they inhabited 
open grassy places, whereas P. oleracea was found only in 
woods. He also mentioned that P. rapae was not an in- 
digenous species, but was said to have been introduced into 
Canada some sixty years ago, and had not only thoroughly 
established itself, but had become one of the commonest 
butterflies, whereas /P. oleracea, an indigenous species, ap- 
peared to be rapidly declining in numbers, and it had been 
suggested that the introduced species was driving it out. He 
