The cost to the library is less in expenditure for books and for service. The library mentioned affords direct evidence that loss of books by theft is very largely controlled by such simple means provided the means are consciously and consistently related to the larger end of regarding the property rights of others. It is interesting to note that three-fourths of its membership has been sustained during the three years. 3. In dealing with large numbers of children of foreign parentage it is evident that we need to define their relationship to the library more clearly than we have done as yet. Quite frequently they do not distinguish between the building and the books and refer to the latter as "taking libraries". Now "taking a library" home is a very different matter from playing a part in the life of a civic institution and the parents as well as the boys and girls are quick to feel a difference which they are not always able to express in words. Quite early in my experience this was brought home to me by a visit from the mother of a Jewish boy who had been coming to the children's room for about a year. She came on a busy Saturday afternoon and after looking about the room seated herself near the desk while the boy selected his books. As Leopold always tested the interest of several books before committing himself to a choice the visit lasted the entire afternoon. When they were ready to go she explained why she had come. She had been curious to discover for herself, she said, what it was Leopold got from the Library that made him so much easier to get on with at home. He had grown more thoughtful of his younger brothers and sisters, more careful of his books and other belongings and more considerate of his mother. "I wouldn't have him know the difference I see," she continued, "but he told me you were always asking him to bring me here and I made up my mind to come and see for myself and I have. "These children are learning how to BEHAVE in PUBLIC as well as how to choose good books and I think it comes from the feeling they have of belonging to the Library, and being treated in the way they like, whether they are as young as my Simon, who is six years old, or as old as Leopold, who will be fourteen next month. If they were all boys of Leopold's age it would be the same as it is at school; but having the younger ones here makes it more as it is at home."