kept.

A Letter Box should also be fixed, with an opening accessible from the road or street, the words "Letter Box" being painted over the same in plain legible characters.

A separate office or apartment, conveniently fitted up for the purpose, should be provided by the postmaster for conducting the business wherever the duties are sufficiently extensive or important to require such accommodation. The internal fittings of the office should vary according to the nature of the duties.

At every principal office there should be a lobby or standing place within doors for the accommodation of parties applying at the office.

Where the Postmaster General may consider that a separate room may be dispensed with, the letters and papers, both for delivery and despatch, are to be kept in a secure place, and, if practicable, under lock and key.