Let me picture the apple-tree babies at one week old, or seven and eight days respectively--to be exact. On taking my regular morning observation I noticed white spine-like processes, the beginning of feathers, among the hairs on their bodies. The heads looked as if covered with, in the language of commerce, a "fine mix," minutest possible white specks on a black ground, which, as days went by, increased in size and length till they developed into feathers. Beaks, too, were changing. The broad, flat surface showed inclination to draw into a point at the tip, which would go on stretching up day by day, till by the time the birdlings could fly they would be nearly as well equipped for hummingbird life as the mother herself. On that seventh day, also, I discovered the first voluntary movement; one of the pair lifted his head above the edge of the nest, and changed his position on the bed of cotton. Now began the restlessness characteristic of our smallest bird. From the age of one week they were rarely for a moment still, excepting when asleep. One moment they would lie side by side, two tiny beaks sticking up close together, and the next, one would struggle and twist about till his beak showed on the opposite side. Occasionally one made himself comfortable by lying across his fellow, but very soon the lower one squirmed out from under. At nine days they filled the nest so full that their bodies showed above the edge, and gave it the appearance from my window of being filled with hairy and very restless caterpillars. The eighth and the ninth day of their little lives opened their eyes on the beautiful green world about them, and backs began to look ragged, as if feathers were at hand. Character was developing also. When mamma touched a closed beak in invitation to lunch, it would sometimes respond with a quick little jerk, as who should say, "Let me alone!" or "Don't bother me!" and on this day began also the attempt to dress the feathers yet to appear, and the running out of the bristle-like tongue. A great surprise awaited me on the fifth day of my enchanting study, the tenth of their life. When I paid my morning visit to the bewitching pair, lying, as always now, close up to the edge of their frail cup, they looked at me with clear, calm black eyes, and saluted me in low, plaintive voices. I should hardly have been more startled if they had spoken to me. [Sidenote: _LIKE BUNDLES OF RAGS._]