Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleLABORATORY WORK IS ESSENTIAL.AuthorsSutton, Traver C.PublicationSchool Science & Mathematics, 1949, Vol 49, Issue 5, p351ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1449.tb06398.x