Crossing the Thames
SIR – The news that plans for a Garden Bridge over the Thames in London are to be abandoned (report, August 15) could possibly lead to the completion of the abandoned Piccadilly Line under the river at the same spot.
It was left unfinished more than 100 years ago and, if now completed, would form a handy link from Holborn to Waterloo Station via Aldwych. Edward Dawes
New Malden, Surrey