a building, nor a heap of books a library! So with materials for a magazine. The editor must study his public and select only such articles as will be appreciated by them. This material must be sifted, the unimportant discarded, the interesting retained. Then it must be carefully edited, checked with the Criminal Investigation Branch for accur- acy, perhaps shortened if too long, and suitable headings written for it. It is now known as “copy,” and arrives in due course in the composing room, where it is “marked” for the various kinds of type required. But before the copy =