A trench was first excavated to the proper depth, then the side walls and arched roof of brick were put in place, earth was filled in behind and over the arch, and the surface of the ground restored, either by paving where streets were followed, or by actually being built over with houses where the lines passed under private property.
In Berlin, on the Stadtbahn - which for a part of its length traverses private property - masonry arches, or earthen embankments between retaining walls, were substituted for the metallic structure wherever possible.
Among other things, he made a more thorough study of socialist writers, with the result that, though he was not converted to any of their schemes as being immediately practicable, he began to look upon some more equal distribution of the produce of labour as a practicability of the remote future, and to dwell upon the prospect of such changes in human character as might render a stable society possible without the institution of private property.
He acted as representative of his exiled king in the negotiations with the Prussian government concerning his private property and opposed the sequestration, thus for the first time being placed in a position of hostility to Bismarck.
The places to which colonies were to be sent were not specified (with the exception mentioned above), so that the commissioners would be able to sell wherever they pleased, and it was left to them to decide what was public or private property.