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PREFACE 5 
of the Prervznae and the migrations of butterflies (7). The 
valuable paper on the ants, wasps, and bees of Majorca 
and Spain (13), by Mr. Edward Saunders, F.R.S., has been 
already referred to. Mr. Abbott H. Thayer, who origi- 
nated the classical interpretation of the white under-sides 
of animals, contributes a most interesting memoir (5) on 
Protective Coloration. His conclusions, mainly accepted, 
are in certain respects criticized by the Professor (6). 
A communication by the Professor to the Entomological 
Society of France attempts to explain the meaning of the 
eye-like spots on the wings of Satyrine and Nymphaline 
butterflies (1). 
A special characteristic of the present volume is the large 
collection of short communications, almost exclusively upon 
bionomic subjects, from the ‘ Proceedings of the Entomo- 
logical Society of London,’ from October 7, 1903, to 
March 21, 1906. The whole forms a list of exhibitions, 
notes, discussions, and short papers contained in Nos. 15-21 
inclusive of the present volume. It is hoped that all will 
be easily traced under sufficiently descriptive titles, eighty- 
nine in number, arranged in order of date, in the Table 
of Contents. 
Dr. Dixey’s name appears as the author of considerably 
over a dozen communications, including accounts of his 
and Dr. Longstaff’s highly important observations on the 
scents of butterflies, and of his own researches into sea- 
sonal forms and cryptic and mimetic coloration in certain 
Pierinae. Dr. Longstaff presented five communications, 
principally dealing with the attitudes of insects and their 
bionomic significance, but also including valuable obser- 
vations on the scents of male butterflies of the Pierine 
genus Gonepteryx. Interesting observations made by Mr. 
A. H. Hamm were the subject of communications and 
