8. The Chevron, a band bent at an angle (properly a right angle), with its point upwards, represents the gable or roof of a house. Thus the four last-named ordinaries represent the four essentials of a fixed habitation: the pale, its enclosure within a given space of ground; the pile, its foundation; the canton, its wall, and the chevron its roof. 9. The Orle, a narrow band following the outline of the shield midway between its edge and centre, is a more definite expression of enclosure or fortification by moat or rampart. The relations of this word, no less than that of the canton, are singular, and worth remembering. Du Cange quotes under it an order of the municipality of Piacenza, that always, in the custom-house where the salt-tax was taken, "a great orled disk" should be kept; "dischus magnus orlatus," _i.e._, a large plate, with a rim, in which every day fresh salt should be placed. Then note that the word disk is used in the Middle Ages, either for a plate, or a table, (the "holy disk" is the patina of the sacrament), but most generally for a table, whence you get the old German disch; our dish, the French disner, diner; and our dinner. The disk cut out into a ring becomes a quoit, which is the simplest form of orle. The word 'orle' itself comes, I believe, from ora, in old Latin, which took a diminutive, orula; or perhaps the 'l' was put in merely to distinguish, to the ear, a margined thing, 'orlatus,' from a gilded thing, 'auratus.' It stands for the hem of a robe, or the fillet of a crown, as well as for any margin; and it is given as an ordinary to such as have afforded protection and defence, because it defends what is within it. Reduced to a narrow band, it becomes a 'Tressure.' If you have a sovereign of 1860 to 1870 in your pocket, and look at the right hand upper corner of the Queen's arms, you will see the Scottish Lion within the tressure decorated with fleur-de-lys, which Scotland bears in memory of her treaty with Charlemagne. 10. The Gyron, a triangular space of colour with its point in the centre of the shield, derives its name from the old Latin gyro, a fold, "pars vestis quâ laxior fit, et in superiori parte contracta, in largiorem formam in imo se explicat." The heraldic 'gyron,' however, also has a collateral reference to, and root in, the word 'gremium,' bosom or lap; and it signifies properly the chief fold or fall of the dress either over the bosom, or between the knees; and has whatever symbolic expression may be attributed to that fold, as a sign of kindness or protection. The influence of the lines taken by softly falling drapery in giving gentleness to the action of figures was always felt by the Gothic artists as one of the chief elements of design; and the two constantly repeated figures of Christ holding souls in the 'gremium' of His robe, and of the Madonna casting hers over suppliants, gave an inevitably recognised association to them.