It has already been stated that archaeological research shows the Yamato race to have been in possession of iron swords and spears, as well as metal armour and shields, from a very early period, probably the date of these colonists' first coming to Japan. They also used saddles, stirrups, bridles, and bits for horses, so that a Yamato warrior in full mail and with complete equipment was perhaps as formidable a fighting man as any contemporary nation could produce. Bows and arrows were also in use. The latter, tipped with iron or stone and feathered, were carried in a quiver. The swords employed by men were originally double-edged. Their names* show that they were used alike for cutting and thrusting, and that they varied in length from ten "hands" to five. There was also a small single-edged sword** carried by women and fastened inside the robe. The value attached to the sword is attested by numerous appellations given to blades of special quality. In later times the two-edged sword virtually fell out of use, being replaced by the single-edged. *Tsurugi (to pierce) and tachi (to cut). **This was originally called himo-kala-ha, which literally means "cord single edge." subsequently kala-ha became katana, by which term all Japanese swords are now known. Sometimes a spear was decorated with gems. It is curious that gems should have been profusely used for personal adornment in ancient times by people who subsequently eschewed the custom well-nigh altogether, as the Japanese did. The subject has already been referred to in the archaeological section, but it may be added here that there were guilds of gem-makers (Tama-tsukuri-be) in several provinces, and that, apart from imported minerals, the materials with which they worked were coral, quartz, amber, gold, silver, and certain pebbles found in Izumo. AGRICULTURE AND INDUSTRY It appears that when the Yamato immigrants reached Japan, the coast lands were overgrown with reeds and the greater part of the island was covered with primeval forests. Fabulous accounts are given of monster trees. Thus, in the Tsukushi Fudoki we read of an oak in Chikugo which towered to a height of 9700 feet, its branches shading the peaks of Hizen in the morning and the mountains of Higo in the evening. The Konjaku Monogatari tells of another oak with a stem measuring 3000 feet in circumference and casting its shadow over Tamba at dawn and on Ise at sunset. In the Fudoki of other provinces reference is made to forest giants in Harima, Bungo, Hitachi, etc., and when full allowance has been made for the exaggerations of tradition, there remains enough to indicate that the aboriginal inhabitants did not attempt any work of reclamation.