His face was a face of bronze.

His form was somewhat slender, but when you looked at him you saw at the first glance that this would be a dangerous man in a ground skuffle, a foot race, or a fight.

There was nothing repulsive or forbidding or even domineering in his looks.

A child or a dog would make up with him on first sight.

He knew not what fear was, or the meaning of the word fear.
He had no nerves, or rather, has a rock or tree any nerves?
You might as well try to shake the nerves of a rock or tree as those of Colonel Field.
He was the bravest man, I think, I ever knew.