Sir: On the question of one-man buses and traffic jams (letter, 12 June), why do we not adopt the French practice of buying books of bus tickets from newsagents, thus eliminating the need for the driver to take money, give change and issue tickets? This would substantially reduce the time of every bus journey.
M A LEES
Brighton, East Sussex
Sir: Last week I scored my first "ton": 32 miles in a day's sponsored walking over the North York Moors two days after my 68th birthday. Is this the optimum mix of miles and years for achieving this kind of century?