1. Squirrels climb.
2. Blood circulates.
3. Muscles tire.
4. Heralds proclaim.
5. Apes chatter.
6. Branches wave.
7. Corn ripens.
8. Birds twitter.
9. Hearts throb.

+Explanation+.--Draw a heavy line and divide it into two parts. Let the
first part represent the subject of a sentence; the second, the predicate.

If you write a word over the first part, you will understand that this word
is the subject of a sentence. If you write a word over the second part, you
will understand that this word is the predicate of a sentence.

Love | conquers
========|============
|

You see, by looking at this figure, that _Love conquers_ is a sentence;
that _love_ is the subject, and _conquers_ the predicate.

Such figures, made up of straight lines, we call _Diagrams_.

+DEFINITION.--A _Diagram_ is a picture of the offices and the relations of
the different parts of a sentence.+

+Direction+.--_Analyze these sentences_:--