The Comma is a mark like this ,

When you come to a comma in reading, you must generally make a short pause. Sometimes you must use the falling inflection of the voice, when you come to a comma; and sometimes you must keep your voice suspended, as if some one had stopped you before you had read all that you intended. The general rule, when you come to a comma, is, to stop just long enough to count one.

Examples.

Diligence, industry, and proper improvement of time, are material duties of the young.

He is generous, just, charitable, and humane.

By wisdom, by art, by the united strength of a civil community, men have been enabled to subdue the whole race of lions, bears, and serpents.

[Sometimes a comma must be read like a question.]

Do you pretend to sit as high in school as Anthony? Did you read as correctly, articulate as distinctly, speak as loudly, or behave as well, as he?

Did he recite his lesson correctly, read audibly, and appear to understand what he read?

Was his copy written neatly, his letters made handsomely, and did no blot appear on his book?