Home›Comparative Psychology›Era (Birth Year)›By Decade›1870sBrowse By1870s1870sComments (0)Reader Challenges (0)1870sFilter Results2 entriesBranch of PsychologyAllComparative Psychology (1)Nationality / CultureAllUnited States (2)Show ResultsBrowseCompareSelect all 2Margaret Floy Washburn1870sRobert Yerkes1870sComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.