Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePROBLEM DEPARTMENT.AuthorsNyberg, J. A.PublicationSchool Science & Mathematics, 1922, Vol 22, Issue 8, p781ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1922.tb07168.x