If he had been a seaside boy, his first job would have been a boat; if he had lived in a flat country, it would very likely have been a windmill; but the most noticeable thing in that neighbourhood was a mill for grinding corn driven by a water-wheel.

When Willie was a tiny boy, he had gone once with Farmer Thomson's man and a load of corn to see the mill; and the miller had taken him all over it. He saw the corn go in by the hopper into the trough which was the real hopper, for it kept constantly hopping to shake the corn down through a hole in the middle of the upper stone, which went round and round against the lower, so that between them they ground the corn to meal, which, in the story beneath, he saw pouring, a solid stream like an avalanche, from a wooden spout. But the best of it all was the wheel outside, and the busy rush of the water that made it go. So Willie would now make a water-wheel.

[Illustration: WILLIE IS TAKEN TO SEE A WATER-WHEEL.]

The carpenter having given him a short lecture on the different kinds of water-wheels, he decided on an undershot, and with Sandy's help proceeded to construct it—with its nave of mahogany, its spokes of birch, its floats of deal, and its axle of stout iron-wire, which, as the friction would not be great, was to run in gudgeon-blocks of some hard wood, well oiled. These blocks were fixed in a frame so devised that, with the help of a few stones to support it, the wheel might be set going in any small stream.

There were many tiny brooks running into the river, and they fixed upon one of them which issued from the rising ground at the back of the village: just where it began to run merrily down the hill, they constructed in its channel a stonebed for the water-wheel—not by any means for it to go to sleep in!

It went delightfully, and we shall hear more of it by and by. For the present, I have only to confess that, after a few days, Willie got tired of it—and small blame to him, for it was of no earthly use beyond amusement, and that which can only amuse can never amuse long. I think the reason children get tired of their toys so soon is just that it is against human nature to be really interested in what is of no use. If you say that a beautiful thing is always interesting, I answer, that a beautiful thing is of the highest use. Is not a diamond that flashes all its colours into the heart of a poet as useful as the diamond with which the glazier divides the sheets of glass into panes for our windows? Anyhow, the reason Willie got tired of his water-wheel was that it went round and round, and did nothing but go round. It drove no machinery, ground no grain of corn—"did nothing for _no_body," Willie said, seeking to be emphatic. So he carried it home, and put it away in a certain part of the ruins where he kept odds and ends of things that might some day come in useful.

Mr Macmichael was so devoted to his profession that he desired nothing better for Willie than that he too should be a medical man, and he was more than pleased to find how well Willie's hands were able to carry out his contrivances; for he judged it impossible for a country doctor to have too much mechanical faculty. The exercise of such a skill alone might secure the instant relief of a patient, and be the saving of him. But, more than this, he believed that nothing tended so much to develop common sense—the most precious of faculties—as the doing of things with the hands. Hence he not only encouraged Willie in everything he undertook, but, considering the five hours of school quite sufficient for study of that sort, requested the master not to give him any lessons to do at home. So Willie worked hard during school, and after it had plenty of time to spend in carpentering, so that he soon came to use all the common bench-tools with ease, and Spelman was proud of his apprentice, as he called him—so much so, that the burden of his debt grew much lighter upon his shoulders.

But Willie did not forget his older friend, Hector Macallaster. Every half-holiday he read to him for a couple of hours, chiefly, for some time, from Dick's Astronomy. Neither of them understood all he read, but both understood much, and Hector could explain some of the things that puzzled Willie. And when he found that everything went on in such order, above and below and all about him, he began to see that even a thing well done was worth a good deal more when done at the right moment or within the set time; and that the heavens themselves were like a great clock, ordering the time for everything.

Neither did he give up shoemaking, for he often did a little work for Hector, who had made him a leather apron, and cut him out bits of stout leather to protect his hands from the thread when he was sewing. For twelve months, however, his chief employment lay in the workshop of the carpenter.

CHAPTER VIII.