He was soon left behind and out of sight altogether.

But this incident was of great value to the voyagers.

It taught them the necessity of using the utmost of caution.

If they should once get in the grip of a number of these savages, the result might be serious.

The country now began to widen into a wonderful panorama.

The vegetation was something most wonderful to behold.

Hills and dales were upon every side, and rivers and brooks were rushing down into the main river.

The voyagers were charmed with the aspect.

They lost no opportunity to take it all in.

“Indeed!” cried Roger. “We are enjoying a privilege such as few people in this generation will be apt to enjoy.”