The _Tihing P‘ien_ says: "Wings beautiful grow for the flying dragon; hair soft like that of a calf on the _ying_ dragon; scales only for the _Kiao-Lung_. Only in pools is found the _Sien-Lung_." Chang-hang said: "How the _Ts‘ang-Lung_ meets the summer and aspires to the clouds, and shakes his scales, accomplishing the season. He passes the winter in the muddy water, and, concealed, he escapes harm." Pan-ku, answering Pin-hi, said: "The _Ying-Lung_ hides in the lakes and pools. Fish and turtle contemn him, and he does not observe it. He can exert his skill and intelligence, and suddenly the clear sky appears. For this reason the _Ying-Lung_, now crouching in the mud, now flying in the heavens, appears to be divine." Lun-hang says, "When the dragon is small, all the fish are small; this is divine." Pao-pòh-tz says: "There are self-existent dragons and there are worms which are changed into dragons." Again, he says: "Among the hills the _Ch‘ăn day_, called the rain master, is a dragon." Hwai-nan-tsz said: "The _Chuh-Lung_ is north of the goose gate concealed in the Wei-Ü mountain." The _Shan-hai-king_ says the god of the Chung-shan is called _Chuh-Lung_. When he opens his eyes it is day, when he shuts his eyes it is night. His body is three thousand _li_ long. The _Shui-hing-chu_ says: "The _Yulung_ considers the autumn days as night. But the dragon descends in the autumn and hibernates in the deep pools; how then can he say that autumn is night?" It also says: "There is a divine dragon in the vermilion pools at Kiao-chew. Whenever there was a drought, the village people obstructed the upper tributaries of the pool, and many fish died; the dragon became enraged at such times, and caused much rain." The _Kwah-ti-t‘u_ says: "At the dragon pool there is a hill with four lofty sides, and within them is a pool seven hundred _li_ square; a herd of dragons live there, and feed upon the many different kinds of trees. It is beyond Hwui-ki forty-five thousand _li_." Again, it says: "If you do not ride on a dragon you cannot reach the weak waters[327] of the Kwan-lun hill."