Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleUSING THE 'TWO BY TWO' PROJECTOR AS A MACRO-MICROPROJECTOR.AuthorsLener, WalterPublicationSchool Science & Mathematics, 1953, Vol 53, Issue 9, p744ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1953.tb06910.x