The methods of societies which exact interest for loans, differ greatly in every detail, and there is evidently no limit to the variations which local custom may adopt in any particular district. In some regions the ordinary number of members appears to be sixteen as in the case just supposed. In others, the number rises to thirty or even more. Sometimes the meetings are held annually, in other districts the usual rule is semiannual meetings, in the second and eighth moons. In societies where the rate of interest is fixed, the only thing to be decided by lot, or by throwing dice, will be the order in which the members draw out the common fund. This may not improbably be determined at the first meeting, each member taking his turn in accordance with the excellence or otherwise of his throws with the dice. But if, as often happens, the interest is left open to competition, this competition may take place by a kind of auction, each one announcing orally what he is willing to pay for the use of the capital for one term, the highest bidder taking the precedence, but no member ever has a second turn. If the oral method of competition is not used, a still better plan may be adopted. This consists of prepared slips, like ballots, noting an offer of interest, deposited by each member in a box, the highest bidder getting the precedence, and in case of like amounts offered by different bidders a second ballot to decide who will add the most to his previous offer. It is easy to see that in this way, the interest to be paid might not be the same for any two loans, in which case there would seem to be inevitable some complexity in the accounts. But for the most part, the Chinese appear to take involved computations of this nature with surprising facility, especially considering the limited practice in mathematics which most of them have enjoyed. For the sake of greater simplicity, we will take a case in which the interest for each period is assumed to be one-fifth of the principal, in which the number of members is ten, besides the organizer of the society, and in which the amount loaned by each member is 10,000 cash. It is also assumed that in this case the headman for whose benefit the lending was begun, does not repay the loan in money, but only in spreading at each meeting a feast of specially good quality. The interest is of the nature of a "bank discount," and is therefore collected in advance, the only certain way, it may be remarked, to collect it at all. Each man, it will be observed, with the exception of the first, actually receives only 8,000 cash, but repays to each one who follows him in drawing, a full 10,000. The result will be best seen in a tabulated form, as follows: (The headman makes the feast only, but does not repay the loan.) The headman receives from each member 10,000 cash (ten strings) 10 X 10 = 100.