Among other important Japanese productions must be mentioned, of course, tea, tobacco, and mulberry trees. Of these the last is, perhaps, indigenous; but the other two are importations in their origin. The culture of tea is most extensively carried on in the middle and southern districts. The annual production is now about 7,000,000 _kwan_;[20] the annual export trade is valued at over 10,000,000 _yen_. The price of tea runs from five cents to six dollars per pound, of which the last is raised at Uji, near Kyōto. The Japanese are a tea-drinking people; they use that beverage at meals and between meals, at all times and in all places. It is true that they drink it from a very small cup, which holds about two tablespoonfuls, but they drink, as we are told to pray, “without ceasing.” Hot water is kept ever ready for making tea, which is sipped every few minutes, and is always served, with cake or confectionery, to visitors.[21] Tobacco was introduced into Japan by the Portuguese, but its use was at first strictly prohibited. The practice of smoking, however, rapidly spread until it became well-nigh a universal custom, not even restricted to the male sex. The Lilliputian pipe would seem to indicate that only a limited amount of the weed is used; but smoking, like tea-drinking, is practised “early and often.” The Japanese tobacco is said to be “remarkable for its mildness and dryness.” The silk industry is the most important in relation to Japan’s foreign trade, and is on the increase. Silk is sent away to American and European markets chiefly in its raw state, but is also manufactured into handkerchiefs, etc. The exports of silk for the year 1910 amounted to about $90,000,000, or about two-fifths of the entire export trade. It would, of course, be beyond the limits of this chapter to enter into the description of the details of sericulture; it may be sufficient here to state that only the stolid patience of Orientals can well endure the slow, tedious, and painstaking process of feeding the silkworms.[22] [Illustration: COTTON MILLS, ŌSAKA] Cotton-spinning is a comparatively new industry in Japan, but is growing rapidly. Cotton is, of course, the principal material for the clothing of the common people, who cannot afford silk robes. But Japan, though raising a great deal of cotton, cannot supply the demand, and imports large quantities from India and America. It is only within a short time that cotton-spinning by machinery has become a Japanese industry; formerly all the yarn was spun by hand; but in 1907 there were 136 cotton-mills in Japan. Some are very small concerns; but in Osaka, Nagoya, and Tōkyō there are comparatively large and flourishing mills. Ordinary workmen receive from 12 to 20 _sen_ a day; skilled laborers make from 30 to 40 _sen_; girls earn from 10 to 20 _sen_, and children only a few _sen_ per day; but the stockholders receive dividends of from 10 to 20 per cent per annum.