My memory is too fuzzy to figure out what angle you took the picture at, but until the library was renovated over the summer of 1998, the library only covered the west half of the library (that is, the half closest to the college center). The other half was the science labs (which explains why if you poke around near the periodicals storage in the basement of the library you'll see some rooms that probably still have old lab equipment), and the front desk area didn't exist; that was a walkway between the two buildings.