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<> Benjamin Franklin College 2017 <> North facade of Head of College's house -> Quincunx board aka Galton board, displays a Normal distribution curve or "Bell curve". <> As per Wikipedia, the Galton board [published 1889] is a vertical board with interleaved rows of pegs. Beads are dropped from the top and bounce either left or right as they hit the pegs, then collect into bins at the bottom, where the height of bead columns accumulated approximate a bell curve. As per Patrick Pinnell, the architect and designer, this honors the importance of statistics to the STEM and Social Sciences housed nearby on Prospect St., Hillhouse Ave. and on Science Hill... It also reminds me of the pinball machines in TD's basement back in my day...are they still there?