呂氏春秋
"Baiyuan" 白猨 "white gibbons" like "Mr. Yuan" were considered to be spiritually powerful. The (c. 239 BCE) "Lüshi Chunqiu" has a "knack story" about the legendary archer Yang Youji 養由基 and a "shen baiyuan" "supernatural white gibbon" that instinctively knew the intentions of humans.