uilt; such was the original site of Chelsea and Battersea.

On the south side the swamp and low ground continued until the ground
began to rise for the first low Surrey Hills at what is now called
Clapham Rise. On the north side the swamp was bordered by a
well-defined cliff from ten to thirty or forty feet high, which
followed a curve, approaching the river edge from the east till it
reached where is now Tower Hill, where it nearly touched the water,
and the spot now called Dowgate--a continuation of Walbrook
Street--where the river actually washed its base, and where it
presented two little hillocks side by side, with the
brook--Walbrook--running into the river between. This was a natural
site for a town--two hills, a tidal river in front, a freshwater
stream between. Here was a spot adapted both for fortification and for
communication with the outer world. Here, then, the town began to be
built. How the trade began I cannot tell you, but it did begin, and
grew very rapidly, Now, as it grew it became necessary for the people
to stretch out and expand; there was no longer any room on the two
hillocks; they, therefore, built a strong wall to keep out the river
and put up houses, quays, and store-houses above and along this
wall--portions of which have been found quite recently. The river once
kept out--although the cliff receded again--the marsh became dry land,
but, in fact, the cliff receded a very little way, and the slopes of
the streets north of Thames Street show exactly how far it went back.
Many hundreds of years later precisely the same course was adopted for
the rescue of Wapping from the marsh in which it stood. They built a
strong river wall, and Wapping grew up on and behind that wall, just
exactly as London itself had done long before.

The citizens of London had, from a very early time, their two ports of
Billingsgate and Queenhithe, both of them still ports. They had also
their communication with the south by means of a ferry, which ran from
the place now called the Old Swan Stairs to a port or dock on the
Surrey side, still existing, afterwards called St. Mary of the Ferry,
or St. Mary Overies. The City became rapidly populous and full of
trade and wealth. Vast numbers of ships came yearly, bringing
merchandise, and taking away what the country had to export. Tacitus,
writing in the year 61, says that the City then was full of merchants
and their wares. It is also certain that the Londoners, who have