The coat bendy argent and gules, the ancient arms of Talbot, which are still borne as a quartering by the Earl of Shrewsbury, Waterford, and Talbot; and the coat chequy or and azure, a quartering for Warren, which is still borne by the House of Howard, all come within the same category. There are many other coats of this character which have no actual charge upon them. The colour of the shield is termed the field when it consists of only one colour, and when it consists of more than one colour the two together compose the field. The field is usually of one or more of the recognised metals, colours, or furs. The metals are gold and silver, these being termed "or" and "argent." The colours, which are really the "tinctures," if this word is to be used correctly, are: gules (red), azure (blue), vert (green), purpure (purple), and (in spite of the fact that it is not really a colour) black, which is known as sable. The metal gold, otherwise "or," is often represented in emblazonments by yellow: as a matter of fact yellow has always been used for gold in the Register Books of the College of Arms, and Lyon Office has recently reverted to this practice. In ancient paintings and emblazonments the use of yellow was rather more frequent than the use of gold, but gold at all times had its use, and was never discarded. Gold seems to have been usually used upon ancient patents, whilst yellow was used in the registrations of them retained in the Offices of Arms, but I know of no instance in British armory in which the word yellow has been used in a blazon to represent any tint distinct from gold. With regard to the other metal, silver, or, as it is always termed, "argent," the same variation is found in the usage of silver and white in representing argent that we find in yellow and gold, though we find that the use of the actual metal (silver) in emblazonment does not occur to anything like the same extent as does the use of gold. Probably this is due to the practical difficulty that no one has yet discovered a silver medium which does not lose its colour. The use of aluminium was thought to have solved the difficulty, but even this loses its brilliancy, and probably its usage will never be universally adopted. This is a pity, for the use of gold in emblazonments gives a brilliancy in effect to a collection of coat-armour which it is a pity cannot be extended by an equivalent usage of silver. The use of silver upon the patents at the College of Arms has been discontinued some centuries, though aluminium is still in use in Lyon Office. Argent is therefore usually represented either by leaving the surface untouched, or by the use of Chinese white.