Now Showing in the front lobby of the Northwest Building: Biological Time. The exhibit is timed to coincide with “Time, Life and Matter: Science in Cambridge,” an exhibit at the Putnam Gallery of the Collection of Historical Scientific Instruments (http://www.fas.harvard.edu/~hsdept/chsi-exhibitions.html).
There is an accompanying webguide at http://guides.library.harvard.edu/Time. Suggestions are welcome!