An elephant herd is a kind of republic, something like the United States of America, only much smaller and much simpler. So its leader is a sort of president. He is usually the wisest elephant in the herd.
You may like to know how the elephants choose their president. I shall tell you how they do that.

But you must first consider how the people of the United States choose their President. They find out who among their important men is best able to lead them in all the great duties of the nation. Then they choose him.

But if afterward they find that he is not leading the nation in the wisest manner, then the people of the United States choose another man to be their President the next time.

The elephants in a herd do something like that. They first follow the elephant who, they think, is best able to lead them. But if afterward they find that he is not leading them through the jungle in the right way, and that another elephant could lead them in a better manner, then they follow him instead. He then becomes the president of the herd.

"But what is the best way of leading the herd through the jungle?" you may ask.

I shall now tell you about that. The best way to lead the herd is to satisfy all their needs. So the president of the herd has four great duties.