I 
entirely. The conditions of civilization will account for some of these changes ; for others we must look 
to the birds themselves. That the list of summer-residents contained in this book is incomplete, we are 
well aware; but it contains the nest or eggs of no species not fully identified. Some birds, the Cerulean 
Warbler, for instance, we know are common summer visitors, but we have been unable to find their 
nests, either in the woods or in collections. Imperfections of this class, omissions, must necessarily exist 
if the publication were ever brought to a close ; but faults of the opposite class have been studiously 
avoided. Trusting that we shall be judged upon the merits of what we have done, rather than criticised 
for what we have omitted, we place “Illustrations of the Nests and Eggs of Birds of Ohio” before the 
public. And if discriminating and learned ornithologists find in it more to praise than to condemn, we 
shall be satisfied with our labor. 
Circleville, 0., August 1, 1886. 
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