BUTTERFLIES 



STRUCTURE, CHANGES, AND LIFE-HISTORIES 



SPECIAL REFERENCE TO AMERICAN FORMS 



BEING AN APPLICATION OF THE " DOCTRINE OF DESCENT " TO THE 

 STUDY OF BUTTERFLIES. WITH AN APPENDIX OF 



PRACTICAL INSTRUCTIONS 



BY 



SAMUEL II. SCUDDER 



NEW YORK 

 HENRY HOLT AND COMPANY 



1881 



