( oxxxy ) 
Professor Poulton had criticised the use of the term 
“mimicry”? in the case of Miillerian resemblances. The 
speaker agreed that any ambiguity between these phenomena 
and DBatesian mimicry was to be avoided, but it had not 
occurred to him that his use of the term ‘‘reciprocal 
mimicry’? was open to this objection. He had also been 
charged with saying that Millerian mimicry was necessarily 
reciprocal. Possibly he had conveyed this impression ; he did 
not, however, intend to assert that this form of mimicry must 
always so demonstrably act as to produce reciprocal alterations 
among species associated under its influence; but merely that 
it exercised a constant potential force, in some cases becoming 
actual and capable of demonstration, towards mutual converg- 
ence, whereas in Batesian mimicry the mimic was neces- 
sarily without any such influence on the model. 
He was glad to hear Professor Poulton say that he was 
becoming convinced by the speaker’s arguments that the 
Pierine were a protected group. Hoes should not himself, 
however, care to assert more than that much evidence point- 
ing to this conclusion existed in respect to many members 
of the subfamily—for instance, the genera Delias and Mylo- 
thris; while in some cases the evidence for inedibility was 
considerably strengthened by the presence of reciprocal 
change. 
Canon Fow.er: Could anyone explain the existence of the 
‘‘predominant partner’’ which was assumed in the explana- 
tion given of these groups? He could not imagine why one 
species should be stable and the others unstable and depen- 
dent upon the former for their characters, 
Mr. Etwes: The society was much indebted to Messrs. 
Godman and Salvin for the loan and to Mr. Blandford for 
the arrangement and exhibition of these valuable specimens. 
He doubted if there were any other collection in the world 
from which such an exhibit as that shown could be got together. 
To his mind the specimens were of infinitely greater scientific 
value in their present arrangement than they would be if 
dispersed throughout a collection in their proper systematic 
positions, 
He therefore pleaded that when the question of their being 
