Consider the bold black and white of that portrait of a wild pony, with flowing mane and tail, glossy barrel, and jolly snub-nosed face.

It is four or five feet across, and not an inch of the work is out of scale.

The same is true of nearly every one of the other fifty or more figures of game-animals.

These artists could paint what they saw.
Yet they could paint up on the walls what they thought, too.

There are likewise whole screeds of symbols waiting, perhaps waiting for ever, to be interpreted.