56 



P. delius, to show the range of variation of the local races 

 of Central and Western Europe, and especially the large 

 pale form taken this summer in Spain. He said that P. 

 apollo and P. delius from Switzerland are very distinct, and 

 it would be difficult not to recognise them at a glance. 

 Those from Spain are no doubt P. apollo, as evidenced by 

 their antennae and size, but in colour and markings they are 

 very close to Swiss P. delius, and very different from Swiss 

 P. apollo. Specimens of P. delius from South-western France 

 and adjacent districts present a close approach in colour and 

 markings to Swiss P. apollo; and P. apollo has, in these 

 districts, races that do not exceed P. delius in size. 



Nevertheless at Digne, which is not very far from this 

 region, P. apollo grows as large as in Spain, and with some 

 tendency (as compared with Swass specimens) to the paler 

 coloration of the Peninsular specimens. These remarks 

 refer to the males. The females do not present differences 

 in precisely the same directions, though each race appears to 

 differ in their sex, as in the other. The females of the 

 Spanish form are very large, and present some varieties with 

 the red eyes of the hind wings of immense size. 



Mr. F. Percy Smith exhibited a large number of lantern 

 slides in illustration of his lecture on "Spiders," and an 

 interesting discussion took place on the relative values of 

 drawing and photography in biological demonstration. 



NOVEMBER 2Sth, 1901. 



Mr. W. J. Lucas, B.A., F.E.S., Vice-President, in the Chair. 



The evening was devoted to the exhibition of varieties, 

 notable captures, and interesting series, and a large number 

 of members and their friends were present. 



The Chairman made the following introductory remarks : 

 "This is now the fifth year in which we have had an exhibi- 

 tion of varieties and notable captures. While each of these 

 gatherings seems to have been a greater success than its 

 predecessor, this one, apparently, will not spoil the record ; 

 and no doubt such an exhibition commends itself to you, as 

 it certainly does to me, as a suitable way of spending an 

 evening at the end of the season. Every naturalist who 

 takes pride in his pursuit properly feels a delight in showing 

 some of the results of his labours, and the rest of us, I am 

 sure, are equally pleased to see what he has to show, and to 



