"The best Eastern blades are justly celebrated, but they are not better than the best European ones; in fact, European swords are often met with in Asiatic hands, remounted in Eastern fashion. The 'damascening' or 'watering' of choice Persian and Indian is not a secret of workmanship, but is due to the peculiar manner of making the Indian steel itself, in which a crystallizing process is set up; when metal of this texture is forged out, the result is a more or less regular wavy pattern running through it. No difference is made by this in the practical qualities of the blade." The above-quoted description, though short and superficial, is sufficient to indicate some of the chief difficulties of the swordsmith's art, and it sets one thinking, too, as to the various uses to which cutting instruments are put, and gradations of hardness, from the high temper of razors and certain chisels to the low temper of hunters' and sailors' knives, which should always be of rather soft steel, for they are sharpened more easily, and the saw-like edge is better suited for cutting flesh, ropes, etc., than a very fine edge would be. A comparatively soft steel does well enough for the heavy cutlass used for cutting lead or dividing a sheep, and the edge, though sharp and keen, need not, and, indeed, cannot, approach the razor-edge necessary for cutting a silk pocket-handkerchief or a feather. _Every_ edge, when closely examined by a microscope, presents a more or less saw-like and jagged appearance. It is merely a question of _degree_, and, in a sword to be used for ordinary cutting and thrusting, you want to secure hardness sufficient to produce a good edge and an instant return to its former shape after any reasonable bending, and you want to avoid anything like brittleness or liability to snap. If the disposition of the molecules is such as to give too great hardness, the blade, though capable of taking a fine edge, will probably snap, or the edge will crack and shiver on meeting any hard obstacle. For example, if you put razor steel into a cutlass, and then try to cut lead, the blade will either snap off or the edge will break away in large pieces. If, on the other hand, you make the blade of too soft steel, the edge will be readily dented or turned on one side. Though there are wonderful reports of the excellence of Eastern blades manufactured at Damascus, it is probable that European work was quite as good, and that the tempering of steel was quite as well understood at Toledo, in Spain, where, in the sixteenth and seventeenth centuries, splendid rapiers were produced. It seems highly probable that the rapier was an extension or refinement of the earlier heavy cut-and-thrust sword, because, though the superior value of the point was beginning then to assert itself, there was an evident attempt to preserve in the rapier the strength and cutting properties of the long straight sword of a previous time.