Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleBIOLOGICAL SCIENCE FOR GENERAL EDUCATION.AuthorsWalker, C. R.PublicationSchool Science & Mathematics, 1956, Vol 56, Issue 1, p48ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1956.tb13045.x