PREFACE.

THE special characteristic of this volume on the Sundayschool teacher's work, in contrast with the many other books on the same general subject, is its attempt at completeness in a systematic order, with the avoidance of purely technical terms. Its style is adapted to the ordinary teacher's comprehension, and its aim is to be readable; while the whole structure of the work is based on sound philosophical principles.

The writer has had some advantages for this service, in that he has had not a little experience in Sunday-school teaching in both church and mission schools, in city and in country, and has long had occasion to study and to write on the principles and the methods of Teaching. In lectures and addresses, and in colloquial discussions, for a series of years, on the various phases of this general theme, before Sunday-school conventions and institutes, teachers' meetings, normal classes, and theological seminaries, he has been compelled to test his theories and his opinions, by comparison with other experts, and under the pressure of keen criticism from bright thinkers and

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