The fact that over $4,000,000 has been invested in these buildings is worthy of comment as is the added fact that more than one-fourth of this large total has been raised by the Negroes themselves. While the figures are of buildings which have been actually completed, it is well to note that there are in progress now, some of them nearly finished and all of them to be finished before June 30, 1922, other buildings which will increase the total to 1500, will show a total outlay of $5,500,000, will bring the total of contributions by the Negroes up to $1,500,000, and make Mr. Rosenwald's contribution over $1,000,000. These school building projects and the financial outlays for them have been definitely approved, and all that is lacking is the actual completion of contracts let. When the work was first undertaken, the thought was to build one-room rural schoolhouses. Under the developing interest, however, larger and better buildings have been erected. As the teacher capacity is an important thing, the total number of teachers has been given to serve as another index to the value of this achievement. Still another significant thing should be noted. All of the construction now going on is being done through the States themselves. Every project is presented for approval by the State educational authorities, and is certified as completed by the same officers. The interest manifested is sincere and continuing, and in North Carolina, for example, there are no fewer than eight people connected with the office of the Superintendent of Public Instruction who are giving their time toward Negro education. There is another point too which may be interesting. The buildings are constructed according to definite plans and specifications and no building receives Rosenwald aid unless it conforms to the details of such plans and specifications. As a result in the Rosenwald schools the windows are so placed as to give the right kind of light; the blackboards too are properly located; and the equipment in the way of desks is the best available for the funds on hand. No school building is paid for until inspection has shown it to be built according to the approved ideas. * * * * * The following extract from _Current History_, Vol. XV, pages 771-772, sets forth the participation of Alice Ball, a scholarly Negro chemist, in the treatment of leprosy through the use of chaulmoogra oil extracted by a difficult scientific process.