The Druids observed two festivals in each year. The former took place in the beginning of May, and was called Beltane or “fire of God.” On this occasion a large fire was kindled on some elevated spot, in honor of the sun, whose returning beneficence they thus welcomed after the gloom and desolation of winter. Of this custom a trace remains in the name given to Whitsunday in parts of Scotland to this day. Sir Walter Scott uses the word in the “Boat Song” in the “Lady of the Lake”: “Ours is no sapling, chance sown by the fountain, Blooming at Beltane in winter to fade;” etc. The other great festival of the Druids was called “Samh’in,” or “fire of peace,” and was held on Hallow-eve (first of November), which still retains this designation in the Highlands of Scotland. On this occasion the Druids assembled in solemn conclave, in the most central part of the district, to discharge the judicial functions of their order. All questions, whether public or private, all crimes against person or property, were at this time brought before them for adjudication. With these judicial acts were combined certain superstitious usages, especially the kindling of the sacred fire, from which all the fires in the district, which had been beforehand scrupulously extinguished, might be relighted. This usage of kindling fires on Hallow-eve lingered in the British islands long after the establishment of Christianity. Besides these two great annual festivals, the Druids were in the habit of observing the full moon, and especially the sixth day of the moon. On the latter they sought the Mistletoe, which grew on their favorite oaks, and to which, as well as to the oak itself, they ascribed a peculiar virtue and sacredness. The discovery of it was an occasion of rejoicing and solemn worship. “They call it,” says Pliny, “by a word in their language, which means ‘heal-all,’ and having made solemn preparation for feasting and sacrifice under the tree, they drive thither two milk-white bulls, whose horns are then for the first time bound. The priest then, robed in white, ascends the tree, and cuts off the mistletoe with a golden sickle. It is caught in a white mantle, after which they proceed to slay the victims, at the same time praying that God would render his gift prosperous to those to whom he had given it.” They drink the water in which it has been infused, and think it a remedy for all diseases. The mistletoe is a parasitic plant, and is not always nor often found on the oak, so that when it is found it is the more precious.