XIV CONTESTS. 



tions to Mr. Bates' Theory of Mimicry Mimicry by Female Insects 

 only Cause of the dull Colours of Female Birds Use of the gaudy 

 Colours of many Caterpillars Summary General deductions as to 

 Colour in Nature Conclusion Pp. 45 129 



IY. TJie Malayan Papilionidce, or Swallow-tailed Butterflies, 

 as illustrative of the Theory of Natural Selection. 



Special value of the Diurnal Lepidoptera for inquiries of this Nature 

 Question of the rank of the Papilionidae Distribution of the Papi- 

 lionidie Definition of the word Species Laws and Modes of Varia- 

 tion Simple Yariability Polymorphism or Dimorphism Local 

 form or variety Co-existing Variety Race or Subspecies Species 

 Variation as specially influenced by Locality Local Variation of 

 Size Local Variation of Form Local Variations of Colour Re- 

 marks on the facts of Local Variation Mimicry Concluding 

 Remarks on Variation in Lepidoptera Arrangement Geographical 

 Distribution Remarkable peculiarities of the island of Celebes 

 Concluding Remarks Pp. 130200 



Y. On Instinct in Man and Animals. 



How Instinct may be best Studied Definition of Instinct Does Man 

 possess Instincts ? How Indians travel through unknown and track- 

 less Forests Pp. 201 210 



YL The Philosophy of Birds' Nests. 



Instinct or Reason in the Construction of Birds' Nests Do Men build 

 by Reason or by Imitation ? Why does each Bird build a peculiar 

 kind of Nest ? How do young Birds learn to build their first Nest ? 

 Do Birds sing by Instinct or by Imitation ? Man's Works mainly 

 Imitative Birds do Alter and Improve their Nests when altered con- 

 ditions require it Conclusion Pp. 211 230 



VII. A Theory of Birds' Nests ; showing the relation of certain 

 differences of colour in female birds to their mode of nidifi- 

 cation. 



Changed Conditions and persistent Habits as influencing Nidification 

 Classification of Nests Sexual differences of Colour in Birds The 

 Law which connects the Colours of Female Birds with the mode of 

 Nidification What the Facts Teach us Colour more variable than 



