asked the Postmaster-General the number of promotions to overseerships in the London postal service in the years 1910 and 1911; how many of these promotions were from the class of sorters and how many from the class of head postmen; what was the average age, in each year, of sorters and head postmen, respectively, and their length of service; and whether he will also furnish a similar Return in respect of the years 1920 and 1921?

The information cannot be obtained without considerable labour and expense, which could not be justified. In the circumstances, I therefore hope my hon. Friend will not press his question.