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The Graduate Center relies on the simpler volumes and less explicit expression of function of James Stirling's university buildings in England, while the interior is made Mannerist by the conflict of the rationalist rectilinear structural grid intersecting the angled facade. The resulting building marks the point of decline from the seeming clarity of the firm's work as represented by the Lang Center at Swarthmore College ( DE28.3) to the convoluted play with diagonals that characterize their later buildings. The adaptation of the carriage house into a dining hall is by the same architects in 1964. The campus is treated as an arboretum and is accessible to the public.