asked the Postmaster-General whether his information indicates an increase in non-delivery of private letters through the post.

I presume the hon. Member refers to loss of letters in the post. While no figures are available with regard to unregistered letters, the indication is that loses of registered letters have declined from the wartime peak.

asked the Postmaster-General the total number of letters and parcels lost during 1946; and what percentage of these was registered.

I regret that the information for which the hon. Member asks is not available.