Memorials of Old London. Volume 1…
“ It is not by any means easy to imagine the present London as a walled town. The multiplicity of streets, the lofty and pretentious character of its buildings, and the immense suburban area of bricks and mortar which surrounds it, render it an extremely difficult task to picture in the mind's eye what the ancient city looked like when all the houses were enclosed by a lofty and substantial wall, largely of Roman masonry, and when admission could only be obtained by strongly defended gateways, approached by means of drawbridges spanning the encircling moat of City Ditch. ”
