NATURE SKETCHES 



IN 



TEMPERATE AMERICA 



r. 



A SERIES OF SKETCHES AND A POPULAR ACCOUNT 



OF INSECTS, BIRDS, AND PLANTS, TREATED 



FROM SOME ASPECTS OF THEIR 



EVOLUTION AND ECOLOGICAL 



RELATIONS 



BY 



JOSEPH LAXE HANCOCK 



M.D., F.E.S. 



m 



WITH TWO HUNDRED AXD FIFTEEN ORIGINAL 



ILLUSTRATIONS IN THE TEXT. AND TWELVE 



COLORED PLATES BY THE AUTHOR 



CHICAGO 



A. C. McCLURG & CO. 



1911 



