The quality of the art lavished as decoration on the gala suits of princes and nobles is superb. In mediæval days it was the prerogative of the male sex, the fighting sex, to deck itself like a game bird in gorgeous plumage; women's raiment was more subdued. To the male, no richness of dress that ingenuity could invent or wealth procure was denied. In preparation for those stately festivals when the courtier was to shine in the presence of the fair sex, his sovereign, and his peers, nothing was spared. The armour of parade intended for royal jousts and tournaments is as sumptuous as the wit of man could devise, with time and money unstinted. Chasing, embossing, engraving, damascening, and gilding of the most exquisite quality were lavished upon it, the designs, and possibly the actual work, being by the best artists of the day. The later suits, when cap-à-pie armour was mainly consecrated to festivals and little regarded in battle, were especially loaded with decoration. Besides its excellence of design and richness of ornament, the mere craftsmanship of the armour itself is of a quality that never can be excelled, and the modern counterfeiter, with all his skill and appliances, is baffled in the reproduction of _tours-de-force_, such as the high-combed morions of Italy and Spain. To study the evolution of armour is like observing the works of nature. Necessity, it is well known, is the great stimulator of the inventive faculty of man, and no necessity is more cogent than that of self-preservation. In the long trials of skill, in which for generation after generation the armourer was pitted against the guilds concerned in the production of lethal weapons, the means of defence seemed once or twice so entirely perfected as to defy the weapons of the assailants. But ere long, the attacking forces, gathering energy, calling on the ingenuity of bowyers, fletchers, sword- and gun-smiths, seem again to emerge triumphant, armed with yet more deadly and powerful weapons. The struggle on the one hand to encase the man, like Achilles, in invulnerable armour, and on the other to break down his armour of proof, was like that between the gunners and naval architects to-day, but it lasted for centuries. It ended, as all such struggles must, in the complete discomfiture of the armourer; the increasing use and accuracy of firearms finally reducing defensive armour to a costly incumbrance. Nature, indeed, seems to will that all things, animate or inanimate, should succumb to persistent attack. Viewed in its true light, armour reveals all the stages, and is the very embodiment of, perhaps, the most prolonged and determined struggle that the development of civilisation has witnessed. It presents a gauge of the extent and limitation of man's inventive faculties, in other words, of his brain capacity, in the ages so-called mediæval.