Mr. What the?

Full Stops (Periods) in Contractions

Only use a full stop (period) at the end of a contraction if its last letter is different to the last letter of the whole word.

Examples:

Mr (contraction of Mister)
�
Revd (contraction of Reverend)�

Rev. (also a contraction of Reverend)�

para. (contraction of paragraph)

paras (contraction of paragraphs)

Dr. (contraction of Doctor; r is the last letter of Dr and Doctor)

para (contraction of paragraph; last letters are different -
full stop required)

The theory is supported by Prof. Munro.