“How am I to know,” asked my friend, “that the bird I see or hear is what it is?” I, for one, can not solve the problem. Certainly, even if our language was adequate to describe the appearance, voice, and habits of a bird, for instance, so accurately that it would instantly be recognized, it is not to be expected that any one, save a professional naturalist, will know our ornithology by heart; and even he falls very short of that. In hopes of simplifying the matter, I have been endeavoring to recall my own experiences; not that I am a trained observer, but because I can not remember when I did not know the more common objects of wild life that I met with. This knowledge—a life-long source of pleasure—was acquired at an early age, probably because I had a naturalist-mother, who correctly explained the little mysteries that perplexed me, and, above all, taught me to be considerate toward and respect the rights of every living creature. So it happened that I came to love even every creeping thing; and with love came knowledge. But the names of things! Until he knew its name, Thoreau looked upon a flower, however beautiful, as a stranger, and held aloof. Certainly one feels a great lift in his pursuit of knowledge as soon as he learns the name of an object; and until then, however interesting that object may be, it baffles him. Let the observer, if an adult, remember, and the child be assured, that every creature has a name, and that it can sooner or later be determined; and now what remains is to so closely examine it that, when opportunity affords to describe it to a specialist, or a description is found in a book, the creature will at once be recognized. Years before I had access to Audubon’s or Wilson’s American Ornithology, I was delighted, one summer day, with a large bird that played bo-peep with me in the orchard. I watched it carefully, studied to repeat its cries, and then attempted to describe it. The bird was pronounced a creation of my imagination, and my labors rewarded with a lecture on romancing; but long afterward I recognized the bird in a museum, and found that I had seen a rare straggler from the Southern States. But nothing of all this bears much, if any, upon my friend’s question, and no definite conclusion has, perhaps, been reached; so I put myself in my friend’s place, and ask, Will some one give me the information required? The more the question, as originally put, is conned over, the more it is like unto asking, How do we learn to talk? Let there be a desire for knowledge, and the problem will solve itself. And as to natural history, the earnest observer will invent names for objects, which will serve his purpose until he learns those, as in time he will, by which they have been recognized by others and are in common use. He who does this will have taken the first and most important step, and all that follows will be pleasure rather than toil.