Enquire within upon everything

ii. When the person to whom you are writing is visiting or residing at the house of another person, it is considered vulgar to put "at Mr. So-and-So's," but simply "Mr. So-and-So's," at being understood. iii. It is more respectful to write the word "Esquire" in full. The ----substituted for initials is vulgar, and pardonable only in extreme cases; if the Christian name or initials of your correspondent do not occur to you at the moment, endeavour to ascertain them by inquiry. iv. When addressing a gentleman with the prefix "Mr.," the Christian name or initials should always follow, being more polite, as well as avoiding confusion where persons of the same surname may reside in one house. v. In addressing a letter to two or more unmarried ladies, write "The Misses Johnson," and not "The Miss Johnsons;" and, lastly, always write an address clearly and legibly, so that it may not be delayed in delivery, nor be missent. 237. Addresses of Persons of Rank and Distinction [1]: 238. The Royal Family. Superscription.--To the Queen's (King's) Most Excellent Majesty. Commencement.--Most Gracious Sovereign; May it please your Majesty. Conclusion.--I remain, with the profoundest veneration, Your Majesty's most faithful subject and dutiful servant. 239. Princes of the Blood Royal. i. The Sons and Daughters, Brothers and Sisters, Uncles and Aunts of the Sovereign.--Sup.--To His (Her) Royal Highness the Prince of Wales (Princess Beatrice). Comm.--Your Royal Highness. Con.--I remain, with the greatest respect (I have the honour to be), your Royal Highness's most obedient servant.