y is permissible.

Uniformity and concise clearness are characteristics of a well-written
address. An address should be written as follows:

Mr. Frankel Banchman,
15 Westland Avenue,
Philadelphia,
Pa.

If the directions are to be included, then the following arrangement
is better:

Mrs. Arthur L. Casson,
North Maplewood,
Chestnut County,
Care of Mr. Hiram Casson. N. Y.

The sign of per cent is no longer used to signify "care of."

A clergyman is addressed "The Reverend John L. Wrigley, D. D.," or,
less correctly, "Rev. John L. Wrigley, D. D.," which may be transposed
to "Rev. Dr. John L. Wrigley." The omission of the article before the
word "Reverend" is quite common.

A physician is properly addressed, "Algernon Brigham, M. D.," and the
salutation is "Dear Dr. Brigham," or "Dear Doctor," if he is an
intimate friend. A man having the title of Doctor with any other
significance than that of Doctor of Medicine, is usually addressed
"Dr. Frederic V. Harlan." A very formal way, however, would be to
address such a one,--supposing each of the titles to be his,--as
"Professor Frederic V. Harlan, Ph. D." For the letter, the salutations
"Dear Professor Harlan" and "Dear Dr. Harlan" are equally correct.

A letter to the President of the United States should be addressed
simply with that title and with no further specification of name,
whether it be official or social: as, "To the President of the United
States, Executive Mansion, Washington, D. C." The salutation should be
simply "Sir." The conclusion should be, "I have the honor to remain
Your obedient servant." If a social letter it may be addressed either
formally or "To the President of the United States, (Christian name
and surname), Executive Mansion," etc. The salutation would then be
"My dear Mr. President."

The Vice President should be addressed officially in the same form;
that is, "To the Vice President, Hon. Chester A. Arthur." He should be
saluted, officially, "Mr. Vice President, Sir;" socially, "My dear Mr.
Arthur."

In addressing the governor of a state the superscription should be,
"To His Excellency, The Governor of Massachusetts, State House,
Boston." The salutation should be "Sir," if official, but "Dear
Governor Barnard," if social. The conclusion of an official letter
should read, "I have the honor to be, Sir, Your Excellency's