i, 
120 THE ZOOLOGIST. 
duce confusion in the mind of an inexperienced lepidopterist. 
We think also that the definitions of protective resemblance and 
mimicry are insufficiently illuminative. The first Mr. Rainbow 
considers as simply meaning ‘‘ that an animal may resemble in 
colour or tint the bark or leaf on which it rests,’’ and that this 
process 1s an unconscious one on the part of an insect ; while by 
mimicry he understands ‘“ that an animal which in itself is 
either harmless or edible has assumed a close resemblance either 
in form or colour to those commonly regarded with fear or 
repugnance.”’ We would rather regard the first as the least 
unconscious, and as disciosing an effort for concealment; while 
the second process is less to be realized by the term assumed 
than by the unconscious action of natural selection. 
But these suggestions in no way depreciate the value of 
an excellent introduction to a knowledge of the Butterflies of 
Australia. 


Tue following have been elected by the Council of the British Asso- 
ciation to be Presidents of Sections at the meeting of the Association 
to be held in Dublin in September next under the general presidency of 
Mr. Francis Darwin, F.R.S.:—Section C. (Geology): Prof. J. Jouy, 
F.R.8., Professor of Geology and Mineralogy in the University of 
Dublin. Section D. (Zoology): Dr. S. I’. Harmer, Superintendent of 
the University Museum of Zoology, Cambridge. Section H. (Anthro- 
pology) : Prof. W. Rinceway, Professor of Archeology in Cambridge 
University. | 
