A few years ago the author prepared a little Manual entitled "The Sunday-School Worker Assisted," etc., which was so favorably received as to call for a large edition without any special advertising. What has seemed to be a most imperative call has again come up, from various sections of our land, and from many denominations of Christians, for a fuller and more complete work, illustrated with examples. If our pastors, superintendents or teachers, wished for specific details of all the departments of the Sabbath-school, they complained that they were compelled to purchase a dozen English and a dozen American works, and even then there were important topics of information still unreached. Besides, books written a quarter of a century ago will not fully meet the requirements of an intelligent Sabbath-school man at this day. The cause is making constant progress, and many real improvements have been made during the past few years which are worthy of special record and notice. Never before has the Holy Bible been so exalted, so taught, so applied, and made so interesting as now. Never before were our best Sabbath-schools devoted to such pure, simple, child-like worship of God as now; and never before was the high and holy aim of immediate conversion of the scholars to Christ, and then their thorough religious training, kept steadily in view, as it is in many Sunday-schools at the present time.