What one observer describes as “the most important discovery since Gutenberg” as a means of recording, storing and distributing the written words, is the microfilm. By this device a book, a newspaper, a manuscript or a valued docu ment is photographed on a bit of film so that the area of the original is reduced a hundred, a thousand or thou sandfold. Thus a great library could be brought within the space now required for its card index and still be readable by means of a magnifying mechanism. The current number of the Industrial Bulletin, published at Cambridge, Massachu setts, reports that scientific papers now may be published on film for distribution too limited for the usual journals and that business documents likewise —_ be copied for record and uling. “An American company has cameras in Europe's leading libraries and will deliver copies of single pages or complete books from their shelves; the Bodleian, the Bib liotheque Nationale and the Vatican collections become avail able to individuals the world over.” Neither the photographic material nor the reading mechanism is yet economically per fected, but progress in both is such that the microfilm is considered one of the promising services of our time, —Atlanta Journal.