As a general rule, the thing which seems to me to succeed best with Yezdi enquirers is controversial teaching of a systematic kind. Pure controversy is sometimes necessary to remove particular objections to the Gospel message, but it has to be followed by regular instruction. On the other hand, instruction that does not bring out very clearly the contrast between Islam and Christianity is liable not to be understood. Persian enquirers seem as a rule to want help in understanding the meaning of Scripture. Several Persian converts have been brought in through the instrumentality of the Bible without the help of the missionary; but such cases are not common. Then one of the most important points that the missionary has to bear in mind is that the Persian expects a concrete example of the Christian life. He is much more able to understand what he sees than what he simply reads, and he is anxious to know how the whole scheme works out, for he wishes to understand how much of the practical teaching of Christianity is really intended for everyday use. He is aware that in his own religion a good deal can be explained away by the mulla, and also that rather different conduct is expected from the clerical and non-clerical classes respectively. It is true that in Islam this difference is not so great as one would expect, but the Mussulman clerics as a class are certainly more particular than the laity about prayers, fasts, and attendance at the mosques. When a Persian sees the Christian colony entirely at variance with the missionary households as to religious customs and ideas, he naturally comes to the conclusion that as a Christian layman he will have to conform much more to the practice of the laity than to the practice of the clerical class, under which heading he will include all missionaries. For this reason it seems to me that it is lamentable for missionaries, clerical or otherwise, to separate themselves too much from the social life of the European colony. Work in such towns as Yezd ought to be primarily church extension, and when both missionaries and other Europeans realise this fact, and do their best to show the native that Christ is a real force in the concrete European life of the present day, the hopefulness of mission prospects becomes increased a thousandfold. But the task before the missionary is a rather more complex one, for his duty is not only to present Christ as a living force in his everyday life, but he ought also to try and avoid all conduct which he learns by experience will seem to the native not to tally with the teaching of Scripture. In other words, he must be ready to give up lawful things which he is unable to justify to those whom he is striving to teach. Such a determination will demand not only strength of purpose, but also careful and prayerful Bible study; but unless the determination is made, the work will inevitably suffer.