200 THE MALAYAN PAPILIONIDE, ETC, 
received little attention till Mr. Darwin showed how 
important an adjunct it may become towards a true . 
interpretation of the history of organized beings, and 
attracted towards it some small share of that research 
which had before been almost exclusively devoted to 
internal structure and physiology. The nature of spe- 
cies, the laws of variation, the mysterious influence 
of locality on both form and colour, the phenomena of 
dimorphism and of mimicry, the modifying influence 
of sex, the general laws of geographical distribution, 
and the interpretation of past changes of the earth’s 
surface, have all been more or less fully illustrated 
by the very limited group of the Malayan Papilio- 
nidz ; while, at the same time, the deductions drawn 
therefrom have been shown to be supported by analo- 
gous facts, occurring in other and often widely-sepa- 
rated groups of animals, 
