Its little sails were neatly made of linen, and whirled round very swiftly when the mill was placed in a draught of air.

Even a puff of wind from Isaac's mouth or from a pair of bellows was sufficient to set the sails in motion.

And, what was most curious, if a handful of grains of wheat were put into the little hopper, they would soon be converted into snow-white flour.
Isaac's playmates were enchanted with his new windmill.

They thought that nothing so pretty and so wonderful had ever been seen in the whole world.
"But, Isaac," said one of them, "you have forgotten one thing that belongs to a mill." "What is that ?" asked Isaac; for he supposed that, from the roof of the mill to its foundation, he had forgotten nothing.
"Why, where is the miller ?" said his friend.
"That is true,--I must look out for one," said Isaac; and he set himself to consider how the deficiency should be supplied.
He might easily have made the miniature figure of a man; but then it would not have been able to move about and perform the duties of a miller.

As Captain Lemuel Gulliver had not yet discovered the island of Lilliput, Isaac did not know that there were little men in the world whose size was just suited to his windmill.