In the three last named instances, all communications are concluded alike, namely:
I am, Sir,
Your obedient servant,
Envelopes directed to Ambassadors or Ministers should contain, besides the address above given, the words "American Embassy" or "American Legation," according to the grade of the officer, together with the name of the city and country where the Embassy or Legation may be located.
Communications to Consuls of the United States are to be addressed the same in all respects as communications to Ministers.
6. General Officers of the Army and Navy in official communications, are addressed by titles only, thus:
The Lieutenant-General commanding the Army.
The Adjutant-General of the Army.
The Major-General commanding the Department of the Lakes.