Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHOW A POLAR PLANIMETER WORKS.AuthorsLarson, Allan W.PublicationSchool Science & Mathematics, 1935, Vol 35, Issue 9, p932ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1935.tb10982.x