In both plans it appears that Warren has worked over his drawings considerably.
Erasures abound, and much of what is left makes little sense.
Stairs ascending flight above flight occupy a well, which must be deep enough to accommodate the forward movement through space and high enough to enable the traveler to pass beneath each flight above. This logic aids greatly in the reconstruction of stairways within an architectural structure. Moreover, stairways must conform to the comfort of those who use them. A ladder, wholly appropriate for sailors to use in getting from one part of the ship to another, is wholly inappropriate for a woman in evening attire. By the same token, broad shallow stairways like those in the foyer of the Paris Opera have no place in the cramped labyrinth of the back-stage bowels of the theatre.