I present them to you at the close of a period of twenty years during which a warm and fast friendship has subsisted between us, unbroken by any disagreement. Four of my works have first seen the light under your care and have wandered all over the world under the protection of your name.  This, my fifth book, I desire to make especially your own; it was partly written in your beautiful home at Tutzing, under your hospitable roof, and I desire to prove to you by some visible token that I know how to value your affection and friendship and the many happy hours we have passed together, refreshing and encouraging each other by a full and perfect interchange of thought and sentiment.