In preparation for the new Chemistry building, Princeton University's Jadwin Hall 5kV electrical feeders needed to be relocated. This picture shows the penetrations that have been made in the areaway wall -- a wall that runs between the building foundation and the south lawn of Jadwin Hall -- to make way for the new run of power conduit. Peeping through the upper holes in this image, one can glimpse a yellow Excavator, one of the pieces of heavy equipment used to construct the new Chemistry building.