The egg thinks feathers much more to its advantage than hair or fur, and much more easily made. If it could speak, it would probably tell us that we could make them ourselves very easily after a few lessons, if we took the trouble to try, but that hair was another matter, which it really could not see how any protoplasm could be got to make. Indeed, during the more intense and active part of our existence, in the earliest stages, that is to say, of our embryological life, we could probably have turned our protoplasm into feathers instead of hair if we had cared about doing so. If the chicken can make feathers, there seems no sufficient reason for thinking that we cannot do so, beyond the fact that we prefer hair, and have preferred it for so many ages that we have lost the art along with the desire of making feathers, if indeed any of our ancestors ever possessed it. The stuff with which we make hair is practically the same as that with which chickens make feathers. It is nothing but protoplasm, and protoplasm is like certain prophecies, out of which anything can be made by the creature which wants to make it. Everything depends upon whether a creature knows its own mind sufficiently well, and has enough faith in its own powers of achievement. When these two requisites are wanting, the strongest giant cannot lift a two-ounce weight; when they are given, a bullock can take an eyelash out of its eye with its hind-foot, or a minute jelly speck can build itself a house out of various materials which it will select according to its purpose with the nicest care, though it have neither brain to think with, nor eyes to see with, nor hands nor feet to work with, nor is it anything but a minute speck of jelly—faith and protoplasm only. That this is indeed so, the following passage from Dr. Carpenter’s “Mental Physiology” may serve to show:—