How does Robert Louis Stevenson describe Dr Jekyll?

Here are three quotes about Jekyll:

"He was wild when he was young" from the end of the "Search for Mr. Hyde" chapter.

And later, in beginning the "Dr. Jeckyll was quite at ease" chapter:

"a large, well-made, smooth-faced man of fifty, with something of a slyish cast perhaps, but every mark of capacity and kindnes"

And a few lines later his face is described as "large and handsome"