As a matter of fact, only a lightning-speed tourist could possibly think of seeing both the Uffizi and the Pitti on the same day, and therefore the need of the passage disappears.

It is hard worked only on Sundays.
The drawings in the cases in the first long corridor are worth close study--covering as they do the whole range of great Italian art: from, say, Uccello to Carlo Dolci.

But as they are from time to time changed it is useless to say more of them.

There is also on the first landing of the staircase a room in which exhibitions of drawings of the Old Masters are held, and this is worth knowing about, not only because of the riches of the portfolios in the collection, but also because once you have passed the doors you are inside the only picture gallery in Florence for which no entrance fee is asked.

How the authorities have come to overlook this additional source of revenue, I have no notion; but they have, and visitors should hasten to make the most of it for fear that a translation of these words of mine may wander into bad hands.
To name the most wonderful picture in the Uffizi would be a very difficult task.