The Cambridge Fire Department responds to a chemical spill in 18-006 on Thursday evening. Building 18, the chemistry building, was designed by I.M. Pei and constructed in the 1960s.

Greg Steinbrecher—The Tech

The Cambridge Fire Department responds to a chemical spill in 18-006 on Thursday evening. Building 18, the chemistry building, was designed by I.M. Pei and constructed in the 1960s. Greg Steinbrecher—The Tech