Many adults, it is believed, have been enabled, with ease and comfort, to commence family worship by its means; and numerous classes have been trained to the exercise in a few lessons. We shall here detain the reader by only a single example. The writer having been requested to meet with the Sunday School Teachers of Greenock and its neighbourhood, about the year 1827 or 1828, paid a visit to that place, and had the proposed meeting in a large hall of the town, where he endeavoured to explain to them, practically, a few of the principles connected with Sunday School Teaching, as more scientifically detailed in the present Treatise. For the purposes of that meeting, three children belonging to one of the Sunday Schools, were for a few hours previously instructed, and prepared to exhibit the working of some of those principles which, it was hoped, would lessen the labour of the Sunday School Teachers, and at the same time increase their influence and their usefulness. These children, (two girls and a boy,) about the ages of ten or twelve years, were regularly instructed by means of the catechetical exercise, in the doctrines, examples, and duties of Christianity; and among other subjects, they were made acquainted with the "Analysis of Prayer," and exercised by its means, without its being hinted to them, however, what use was intended to be made of it. The meeting was a crowded one; where, besides the Sunday School Teachers, and Parents of the children, nearly all the Clergymen of the place were present. When the more ostensible business of the meeting had been concluded, the writer consulted privately with two or three of the clergymen, and asked, whether they, knowing the general sentiments of the persons composing the meeting, would think it improper that one of the three children who had shewn themselves so intelligent, should be called on solemnly to engage in prayer with the audience before dismissing. To this they replied, that there could be no objections to such a thing, provided the children were able;--but of their ability, they very seriously doubted. On this point, however, the writer assured them there was no fear; and if that were the only objection, they would themselves immediately see that it was groundless. The boy accordingly, without his even conjecturing such a thing previously, was, before the meeting was dismissed, publicly called on to engage in prayer. He was for a moment surprised, and hesitated; but almost immediately, on the request being repeated, he shut his eyes, and commenced, with a solemn and faltering voice for one or two sentences; when, recovering from every appearance of trepidation, he proceeded with much propriety and solemnity of manner, with great latitude, and yet perfect regularity and self-possession, through all the departments of adoration, confession, thanksgiving, and petition, in language entirely his own, selecting for himself, and arranging his sentences agreeably to the Analysis, which