A well-known custom is to rise early and walk exactly one hundred paces into a grass-field without turning the head; then to pluck one hundred blades of grass, which must be carefully taken home. The grass is put into a pot of water and thoroughly boiled. The water--into which all the virtues of the grass are now supposed to have passed--is poured through a strainer into a second vessel, and the grass-blades are thrown away. A second boiling now takes place, and the liquid is poured into a bottle and kept for use as required. It is believed to be a sovereign remedy for headaches, small wounds and bruises, and various nervous disorders. The Chinese know it as _pai ts'ao kao_--"hundred-grass lotion." The wise men who hand down this valuable recipe from generation to generation are careful to explain that the medicine will be of no avail whatever if any of the prescribed conditions have been neglected. It is absolutely necessary to walk neither more nor less than one hundred paces, to pluck neither more nor less than one hundred blades of grass, and to boil and strain the water in the manner laid down. Above all, everything must be done on the fifth day of the fifth month, as it is only on that day that ordinary grass possesses _ling_--spiritual or health-giving properties. The seventh day of the seventh month is celebrated throughout China in connection with a love-story to which allusion is constantly made in Chinese literature. It is said that the Herd-boy (the star β γ Aquila) and the Spinning Maiden (α Lyra), separated throughout the rest of the year by the Milky Way, are allowed to cross a mystic bridge made by magpies, and to meet and embrace each other on that night only. In Weihaiwei, where there are large numbers of magpies, it is said that not one of these birds will ever be seen on this day until after the hour of noon: all having gone up to the skies to perform the duty of making a bridge for the celestial lovers. The day is regarded as one of good omen and suitable for fortune-telling and the drawing of lots.