Excerpt from Mark Twain, A Biography Vol II, Part 2
From CLXV. Letters, Visits, and Visitors
Robert Louis Stevenson came down from Saranac, and Clemens went in to visit him at his New York hotel, the St. Stevens, on East Eleventh Street. Stevenson had orders to sit in the sunshine as much as possible, and during the few days of their association he and Clemens would walk down to Washington Square and sit on one of the benches and talk. They discussed many things--philosophies, people, books; it seems a pity their talk could not have been preserved.
Stevenson was a great admirer of Mark Twain's work. He said that during a recent painting of his portrait he had insisted on reading Huck Finn aloud to the artist, a Frenchman, who had at first protested, and finally had fallen a complete victim to Huck's yarn. In one of Stevenson's letters to Clemens he wrote:
My father, an old man, has been prevailed upon to read Roughing It (his usual amusement being found in theology), and after one evening spent with the book he declared: "I am frightened. It cannot be safe for a man at my time of life to laugh so much."