We have a very high appreciation of the value of a good Sabbath-school library. It seems to me that no form of circulating sound religious reading is superior. The books, however, require to be selected and adapted with the greatest care. This is certainly a difficult matter, but the object to be attained is so great as to reward the effort. Many schools are now flooded with the most vicious, improper books. There is no justifiable excuse for this. Never were there so many good books for children and youth as now. Several hundreds that teach the soundest Christian morals and are true to life, and filled with the soundest evangelical Bible instruction, can now be selected. There is scarcely a shadow of excuse at the present time for admitting even a doubtful book into our Sabbath-school libraries--unless some will accept the plea of ignorance and laziness. Our children's minds should be as sacredly guarded from poisonous books as their bodies from poisonous drugs. There should be a judicious standing committee in every school to select library books, while the pastor should always carefully revise their selection. The books of the Sabbath-school library must be attractive and interesting, or they will not be read by the young. They must be true to life and fact, or they will prove pernicious. They must be instructive, or they should find no place in the library. They should be adapted to awaken, convict and convert, to nourish in the religious life and morals, and throw light upon all the pathway of everyday practical life, or they will fall short of meeting the great want. They must strictly conform in all things to the Bible standard, or they should never be found in any of our Sabbath-school libraries. Better have no books than to have unsound ones. Spare no pains to procure an abundance of good, sound, attractive, and useful reading, and we will soon drive away the flood of bad books which is now threatening to destroy our youth. _Several copies_ of superior books should be placed in the library at the same time. Select such as are adapted to all ages and conditions, from the children in the infant-school up to the wide-awake young men and women in our highest adult Bible classes, and to teachers. Let them also cover all stages of religious feeling and want. Books of narrative, history, biography, youthful Christian experience and training, on temperance, good morals, good habits and manners, should all be provided for the thorough religious instruction of our children and youth. The library should also comprise a good teacher's library with good reference Bibles, a Concordance and Dictionary. Then give the books the largest, freest and most active circulation.