This is the author's 11th survey on the source of materials to some episodes of the famous Chinese novel Hsi-yu Chi (西遊記，well-known to the Western World as The Adventure of Monkey). The present survey covers：(1) The episode of Monkey who could not escape from the open hand of the Buddha is derived from a Tibetan legend that an evil huge dragon who could not escape from the hand of Master Padmasambhava after being caught by the magic of the latter. (2) The episode of 'Coconut Wine' is derived from the local liquor of Southeast Asia that out of coconut's flower. (3) The novel says that not only once Monkey changed himself into a flying insect by a spell and then getting into a certain demon's body through the latter's mouth. After that he threatened to eat out the entire viscera of that demon as a way of forcing the latter to surrender. These stories are derived from a story of the Madhyamagama that once the evil `Papiyan` reduced himself into a very small figure and then penetrated into the body of Mahamaudgalyanyana, and the latter told Papiyan to get out. Also，they derived from a story of the Samyuktagama that a hungery wild cat who swallowed a mouse into its stomach, and after that the mouse began to eat the cat's viscera. (4) The episode of a huge turtle who carried the Tripitaka Master and his followers with its back to across a river is derived from a story in the `Samyuktaratnapitaka Sutra`. (5) The episode of the Mongalian Wolf Demon's weapon，a metal ring hanging with three bells, the first bell shoots out black smoke，the second one，poisonous yellow sand and the third one，red fire，are the embodiments of some naval weapons of Ming China used in the war of fighting the Japanese pirates. (6) The look of Maitreya, a fat monk who always keeping a smile and bringing with him a linen beg，is modeling after the description of the Chinese monk `Ch'i-tz'u` (契此) in `Sung-kao-seng` chuan (宋高僧傳，or The Biographies of Eminent Buddhist Monks Compiled in the Sung Dynasty). (7) In this novel, there are four 'Yellow' demons, i.e. the Yellow Wind Blowing Demon，the Yellow Robed Demon，the Yellow Lion Demon and the Yellow Eyebrowed Demon. The first three are prepared by Wu `Ch'eng-en` (吳承恩 ), author of this novel，for ridiculing the Royal relatives of the Ming Dynasty as they are all putting on yellow garments. While the last one, prepared for the powerful Tibetan Lamas who were favoured by the Ming court. As a lama is putting on yellow hat and the edge of a hat is so close to one's eyebrow，Wu Ch'eng-en dropped his hint in this way.
