In m,
The Only Living Boy in New Cross typed:

One of the commonest explanations you hear for the lack of tube lines
south of the river is that the soil is unsuitable for the tunnelling
equipment in use in the early years of the 20th century. If that's
the case, though, how did the Morden end of the Northern Line get
built?


Well, as far as the City Branch is concerned, I guess that they heard that
the equipment was going to be unsuitable for use in the early years of the
20th century - and so built it in the 19th century instead.



Bob