The Collection of Historical Scientific Instruments (CHSI) is located in the Science Center at One Oxford Street in Cambridge. The CHSI collection and our special event on April 30, 2014 will be held in the Putnam Gallery (Science Center 136). If you are driving, on-street parking can be difficult to find on Oxford Street. For your convenience, we have reserved a limited number of parking spots at one of Harvard’s parking garages at no charge. Please contact Allison Kern via email; allison_kern @harvard.edu or call (617) 496-9780 to secure your space. Arrangements for accessible parking can be made in advance through the contact information above. Public transportation from the Harvard Square Station is a five to ten minute walk through the yard.