With such modest beginnings the Children's Museum has developed within ten years, until the present building has become entirely inadequate for present needs. The collections now fill eleven exhibition rooms and adjacent halls; the lecture room is frequently overcrowded, the lecture being sometimes repeated again and again; and the space set apart for the library has long been taxed to its utmost. There are no reserve shelves for books, and when new books are added the least-used books are necessarily taken out and placed in temporary storage in a dark office on another floor. In busy times after school hours and on holidays, the reading room is frequently filled to overflowing, many of the children being obliged to stand, or perhaps turn away for lack of even standing room. The number of visitors is steadily increasing, and numbered 14,637 in the month of February, 1910; just about one-third of this number, or 4,925, made use of the library during the month. A new building is therefore urgently needed, and it is ardently hoped that a new fireproof building which is adequate for the purpose may soon be provided, to relieve the great stress now so apparent in many parts of the building, as well as to preserve its interesting collections and valuable library. It seems evident that an institution which stands primarily for earnest endeavor to awaken an interest in Nature, is really necessary, especially in cities where many children live so closely crowded together that they hardly know what wild flowers are, and whose familiarity with birds is confined principally to the English sparrow. Moreover, the nature study of the public school course, though good as far as it goes, is too often perfunctory, either from lack of interest or enthusiasm on the part of teachers, it being an added subject to an already crowded curriculum. Another seeming drawback is that the nature work is attempted during the first few years only, and then is dropped entirely for the remainder of the elementary course. A comparatively small number of children continue their studies in high schools; and even so, the study of botany and zoology is made so largely systematic and structural that any desire of becoming acquainted with the birds and flowers and trees is frequently eliminated. Although entirely independent of the Board of Education it is along just such lines that the Children's Museum is able to make a place for itself in supplementing the work of the school. Its aims have been defined by the curator to be as follows: