wrote:

In article ,

(MaxB) wrote:

"Basil Jet" wrote:

http://www.bing.com/maps/?v=2&cp=skb...=b&form=LMLTCC

It looks like there are two air holes in the middle of the picture. Why
would such short tunnels have air holes?

You can (just) see them from Google Street View, best from east end,
but doesn't provide any explanation. Not the usual sort of shape for
steam holes I would have thought but of course they must be very
short.

Weren't they for the aborted Bakerloo line extension?

No, they're for the railway that passes directly underneath - zoom out to
get the context.