Avoid all such abbreviations as the following: St. for Street; Ave. for Avenue; Apart. for Apartments; Chi. for Chicago; Phila. for Philadelphia.

Wrong: Hardie Apart., Pbg., Pa.
Right: Hardie Apartments, Pittsburg, Pa.

Do not use the sign # before the street number.

Do not omit the word Street.

Wrong: 229 Market.
Right: 229 Market Street.

Do not write the date thus: 9/10/10. Represent the numbers by figures, not words. See §§ 75 and 76. Do not use st., rd., etc., after the number of the day.

Wrong:9/8/09.
Right:September 8, 1909.
Wrong:September the Ninth, Nineteen Hundred and Nine.
Right:September 9, 1909.
Wrong:March 10th, 1910.
Right:March 10, 1910.

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