Then he went on to explain that there is a formula of prayers on the sides of the post, and sometimes on the wheel, and that for each revolution of the wheel these prayers are supposed to be uttered. A devotee passes, and, as he does so, he revolves the wheel; and for each time it turns around a prayer is recorded in heaven to his credit. It follows that a man with strong arms, and possessing a knack of making the wheel spin around, can do a great deal more petitioning to Heaven than the weak and clumsy one. Fred thought that it would be a good thing to attach these prayer-wheels to mills propelled by water, wind, or steam, and thus secure a steady and continuous revolution. The Doctor told him that this was actually done in some of the Buddhist countries, and a good many of the pious people said their prayers by machinery. [Illustration: ARCHERY ATTENDANT.] They strolled along to where there were some black-eyed girls in charge of booths, where, for a small consideration, a visitor can practise shooting with bows and arrows. The bows were very small, and the arrows were blunt at the ends. The target was a drum, and consequently the marksman's ear, rather than the eye, told when a shot was successful. The drums were generally square, and in front of each there was a little block of wood. A click on the wood showed that a shot was of more value than when it was followed by the dull boom of the drum. The girls brought tea to the boys, and endeavored to engage them in conversation, but, as there was no common language in which they could talk, the dialogue was not particularly interesting. The boys patronized the archery business, and tried a few shots with the Japanese equipments; but they found the little arrows rather difficult to handle, on account of their diminutive size. An arrow six inches long is hardly heavy enough to allow of a steady aim, and both of the youths declared they would prefer something more weighty.