Continuing the eastward expansion of the campus, meanwhile, the two big new science buildings, Frick and Green, were built across Washington Road. Ground was broken for both on the same day in 1927. Consistent with the directive from the Trustees mandating the use of the Collegiate Gothic style, Klauder gave these structures conventional Collegiate Gothic stone facades. Of the two, Frick incorporated more interesting features, with modest towers at the northern and southern ends of the western facade, its distinctive double-arched main entrance, and a medieval-appearing foyer with more arches leading into the main auditorium.

The exterior details and the foyer of Frick masked what were primarily functional, un-ornamented interiors of a science lab.

Additionally, neither Green nor Frick had the sharply steeped slate roofs of the earlier Collegiate Gothic buildings on campus. Part of this was motivated by economy, but Klauder was also experimenting with different applications of the style. For instance, Eno (begun in January 1924) was reputedly the first Collegiate Gothic building with an entirely flat roof, and Green and Frick echoed this trend.