1. Because earnest, warm-hearted, disinterested efforts in this direction have ever been successful. When building the Brick Church in Rochester, N.Y., the names of all the scholars and their ages were transcribed and placed in the corner-stone, when it was ascertained that, of the whole number--I think 652--the average age was fourteen years and ten months; and other churches in that city present a similar record, because the able and influential Christian business men and women of Rochester devote themselves to this great work. 2. Because no class of persons is more susceptible to kind attention and real sympathy. They are quick to perceive and prompt to act. No class is more hopeful. 3. Because these senior classes, when appropriately conducted, are well adapted to meet the wants of their personal, social, intellectual, and religious nature, and to fill a secret void that is keenly felt by these precious youth. In the second place, _How_ can our young men and women be reached? I answer: 1. Christian men and women of real talent and character, of religious and social position, must be thoroughly aroused to a self-sacrificing, devoted, heartfelt interest for them. They must put their hearts into it. No feigned respect will do. Nothing but real sympathy will be received. No mere professions will answer. These youth are quick and sharp-sighted to detect anything insincere or unreal. The best men and women of our churches must be chosen to take charge of their classes--persons who can and will understand, appreciate, and respect young people. They must evince a more anxious and watchful desire to notice and approve what is right in them, than to condemn that which is wrong. They must be patient and forbearing, with a good control of their countenance, tone of voice, language, quick to discover the value and bearing of the half-uttered opinions of the class, with an earnest personal interest in each one and all things that concern them. They should be enabled to prove themselves sincere friends and counsellors of all--both for this life, in employment, business, social questions, amusements, etc., and for the life that is to come. They should have an intelligent enthusiasm in the great work, with a strong faith in God, in his Word, and in his Spirit, and a hearty good-will to man. 2. Lay your plans for these classes on so large and liberal a scale as to command the scholars' respect as well as your own. Render them as pleasant and as attractive as possible. Make the best arrangements you can as to room, seats, library, and periodicals. I am sure _The Sunday-School Times_ and other Sabbath-school journals and magazines, would be very useful in such a service. Do all you can to raise these classes in their own estimation, and omit no opportunity to cherish self-respect on the part of each member, and try to inspire them all with higher aspirations and better hopes. Manifest, as well as feel, a _personal_ interest in each one.