1. The period is used at the end of every complete sentence which is not interrogative or exclamatory.

2. Sentences interrogative and exclamatory in form, sometimes take the period.

Will you call at my office, say on Tuesday next, or whenever you happen to be in town, and much oblige—

Yours truly,

JOHN SMITH.

How much better it is, considering the saving of distance to the pupils, that two small schoolhouses should be built, rather than one large one.

3. The period is put after initials when used alone; also after ab­bre­vi­a­tions.

4. Place a period before decimals, and between pounds and shillings.