Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleNEW OFFICERS FOR SPENCER LENS.PublicationSchool Science & Mathematics, 1944, Vol 44, Issue 6, p559ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1944.tb06155.x