An interior passage allows the guard to go through it to reach the tender and locomotive if necessary.
Popof's little cabin is on the platform of the first car, in the left-hand corner.

At night it will be easy for me to visit the van, for it is only shut in by the doors at the ends of the passage arranged between the packages.

If this van is reserved for luggage registered through to China, the luggage for the Turkestan stations ought to be in the van at the rear.
When I arrived the famous box was still on the platform.
In looking at it closely I observe that airholes have been bored on each of its sides, and that on one side it has two panels, one of which can be made to slide on the other from the inside.

And I am led to think that the prisoner has had it made so in order that he can, if necessary, leave his prison--probably during the night.
Just now the porters are beginning to lift the box.

I have the satisfaction of seeing that they attend to the directions inscribed on it.