But the very tiniest feather on this Sparrow is built up in the same way.
"See! here is one," continued the Doctor, as he twitched out a feather from the Sparrow's back.

"You see the quill part runs in the middle from one end to the other; this is called the _shaft_.

On each side of it all along, except just at the root, the spray-like parts grow.

They are called the _webs_ or _vanes_.

Now look through this magnifying glass at the web." The children looked in turn, and each, exclaimed in wonder at the sight.
"Yes, it is very wonderful.