enotes likewise a pond-head made to keep in store of water for driving the wheels of the furnace or hammer belonging to an iron mill, by the stream that comes thence through a flood-gate called the penstock.

Bay-Colour denotes a sort of red inclining to chestnut, chiefly used in speaking of horses. In this sense, the word bay is formed from the Latin baius, or badius, and that from the Greek βαῖος, a palm branch; so that badius or bay properly denotes color phanerous. Hence also, among the ancients, those now called bay horses, were denominated equi palmati. We have divers sorts and degrees of bays; as a light bay, a dapple bay, &c. All bay horses are said to have black manes; which distinguishes them from foals, which have red or white manes.

Bay, among huntmen, is when the dogs have earthered a vermin, or brought a deer, boar, or the like, to turn head against them. In this case, not only the deer, but the dogs, are said to bay. It is dangerous going in to a hart at bay, especially at rutting-time; for then they are fiercest. There are bays at land, and others in the water.

Bay-Tree. See Laurus, Botany Index.

Bay-Salt. See Salt.