English arrows then had forked heads and broad heads, but round pointed heads resembling a bodkin were reckoned better. The notch, or small hollow part at the bottom of the arrow, made for the reception of the bow-string, was varied as occasion required, or at the will of the archer, being sometimes deep and narrow, and sometimes broad and not deep. * * * * * An arrow, weighing from twenty to twenty-four pennyweights, made of yew, was considered by archers to be the best that could be made. The feathers of a goose should be used; and the bird from which they are taken should be two or three years of age. In an arrow, it is remarkable that two out of three feathers are commonly white, as they are plucked from the gander; but the third is usually brown or grey, being taken from the goose; and this difference of colour shows the archer when the arrow is properly placed. The expression of the “grey goose’s wing,” in the old ballad of Chevy Chase, is an allusion to this occurrence; originally, arrows were armed with flint or metal heads; latterly with iron of different forms and names. Henry IV. ordained that all arrows should be well boiled or brased, and hardened at the points with steel. Arrows were usually reckoned by sheaves; a sheaf consisting of twenty-four arrows. They were carried in a quiver, called an arrow case, which served for the magazine. In ancient times, different species of combustible materials were attached to the heads of arrows, and shot from long bows; and even subsequently to the invention of gunpowder this mode has been carried into execution. According to Neade, an archer may shoot an ounce of fireworks from an arrow twelve score yards. Among the stores at Berwick and Newhaven, in the reign of Edward VI., arrows with wildfire are enumerated. Some slight opinion of the strength of an arrow in its full flight, may be formed from the account given by Edward VI. in his journal: he observes, that one hundred archers shot arrows each before him, and afterwards altogether; that they shot at an inch board: some pierced it through and stuck in the other board, and others pierced it through with the heads of their arrows.—_Ascham_—_Strutt._ ARSENIC, _s._ A mineral, the preparations for which are sometimes used in veterinary practice. There are two kinds, white and yellow: white arsenic is a powerful tonic, and has been given with success in glanders and farcy. Yellow arsenic, mixed with lard, is used to remove warts, and in fistula and poll-evil. ARSENICAL, _a._ Containing arsenic. ARTERIAL, _a._ That which relates to the artery; that which is contained in the artery. ARTERY, _s._ An artery is a conical vessel, conveying the blood from the heart to all parts of the body. ARTICULAR, _a._ Belonging to the joints.