Then, as the train puffed laboriously through the great pine forests that cover these mountains with a giant carpet of velvet, he found the pleasanter layers of memory giving up their dead, and he recalled with admiration the kindness of the masters, whom all addressed as Brother, and marvelled afresh at their devotion in burying themselves for years in such a place, only to leave it, in most cases, for the still rougher life of missionaries in the wild places of the world.