tairway as originally built.
As yet we have found no one to tell us of the mode of construction of those circular walls.
The alterations made twenty years ago (by workmen from out of town) may or may not have revealed it to them.
The windows set deeply into the walls from without and more so within, and suggest that the circular walls may be of rough brick-work.
If not, they may be of planks, sawed in segments and spiked or trunnelled, one upon another, as was the circular house of Enoch Robinson on Prospect hill in Somerville.
There are several dwellings in Medford, built before the Civil War, whose walls and partitions were thus laid up with fencing pales. On the exterior they are sheathed vertically with narrow boards whose edges are devoid of heading or rounded corners, and their joining is now, after the lapse of so many years of exposure, barely noticeable.
There is apparent sincerity of construction, in that no attempt is made to imitate a lintel over the windows, only