Sharp Eyes a Rambler's Calendar of Fifty-Two Weeks Among Insects, Birds and Flowers, 1896 #255926

These letters have embraced questions, I had almost said, upon every conceivable subject of zoology; ques tions which frequently would have taxed the erudition of Humboldt himself, to say nothing of an occasional inquiry which would as certainly for the moment have annihilated his equanimity.