The contrasting pictures in “Then and Now” (March) should be appreciated by all Bostonians. The stately trees and awnings on Tremont Street give a smalltown flavor to the 1899 view. There is, however, one obvious error in the narrative. The old “cottage-like vestibule” is not closed. It functions now as it did in 1899 as an exit for the Green Line and the Red Line. To the right of the vestibule and out of sight is a similar stone structure, which serves as an entrance to the Park Street station.