The form of pump most used in China and the foot-power for working it are seen in Fig. 171. Three men working a similar pump are seen in Fig. 150, a closer view of three men working the foot-power may be seen in Fig. 42 and still another stands adjacent to a series of flooded fields in Fig. 172. Where this view was taken the old farmer informed us that two men, with this pump, lifting water three feet, were able to cover two mow of land with three inches of water in two hours. This is at the rate of 2.5 acre-inches of water per ten hours per man, and for 12 to 15 cents, our currency, thus making sixteen acre-inches, or the season's supply of water, cost 77 to 96 cents, where coolie labor is hired and fed. Such is the efficiency of human power applied to the Chinese pump, measured in American currency.
This pump is simply an open box trough in which travels a wooden chain carrying a series of loosely fitting boards which raise the water from the canal, discharging it into the field. The size of the trough and of the buckets are varied to suit the power applied and the amount of water to be lifted. Crude as it appears there is nothing in western manufacture that can compete with it in first cost, maintenance or efficiency for Chinese conditions and nothing is more characteristic of all these people than their efficient, simple appliances of all kinds, which they have reduced to the lowest terms in every feature of construction and cost. The greatest results are accomplished by the simplest means. If a canal must be bridged and it is too wide to be covered by a single span, the Chinese engineer may erect it at some convenient place and turn the canal under it when completed. This we saw in the case of a new railroad bridge near Sungkiang. The bridge was completed and the water had just been turned under it and was being compelled to make its own excavation. Great expense had been saved while traffic on the canal had not been obstructed.
In the foot-power wheel of Japan all gearing is eliminated and the man walks the paddles themselves, as seen in Fig. 173. Some of these wheels are ten feet in diameter, depending upon the height the water must be lifted.
Irrigation by animal power is extensively practiced in each of the three countries, employing mostly the type of power wheel shown in Fig. 158. The next illustration, Fig. 174, shows the most common type of shelter seen in Chekiang and Kiangsu provinces, which are there very numerous. We counted as many as forty such shelters in a semi-circle of half a mile radius. They provide comfort for the animals during both sunshine and rain, for under no conditions must the water be permitted to run low on the rice fields, and everywhere their domestic animals receive kind, thoughtful treatment.
In the less level sections, where streams have sufficient fall, current wheels are in common use, carrying buckets near their circumference arranged so as to fill when passing through the water, and to empty after reaching the highest level into a receptacle provided with a conduit which leads the water to the field. In Szechwan province some of these current wheels are so large and gracefully constructed as to strongly suggest Ferris wheels. A view of one of these we are permitted to present in Fig. 175, through the kindness of Rollin T. Chamberlin who took the photograph from which the engraving was prepared. This wheel which was some forty feet in diameter, was working when the snap shot was taken, raising the water and pouring it into the horizontal trough seen near the top of the wheel, carried at the summit of a pair of heavy poles standing on the far side of the wheel. From this trough, leading away to the left above the sky line, is the long pipe, consisting of bamboo stems joined together, for conveying the water to the fields.
When the harvest time has come, notwithstanding the large acreage of grain, yielding hundreds of millions of bushels, the small, widely scattered holdings and the surface of the fields render all of our machine methods quite impossible. Even our grain cradle, which preceded the reaper, would not do, and the great task is still met with the old-time sickle, as seen in Fig. 176, cutting the rice hill by hill, as it was transplanted.
Previous to the time for cutting, after the seed is well matured, the water is drawn off and the land permitted to dry and harden. The rainy season is not yet over and much care must be exercised in curing the crop. The bundles may be shocked in rows along the margins of the paddies, as seen in Fig. 176, or they may be suspended, heads down, from bamboo poles as seen in Fig. 177.
The threshing is accomplished by drawing the heads of the rice through the teeth of a metal comb mounted as seen at the right in Fig. 178, near the lower corner, behind the basket, where a man and woman are occupied in winnowing the dust and chaff from the grain by means of a large double fan. Fanning mills built on the principle of those used by our farmers and closely resembling them have long been used in both China and Japan. After the rice is threshed the grain must be hulled before it can serve as food, and the oldest and simplest method of polishing used by the Japanese is seen in, Fig. 179, where the friction of the grain upon itself does the polishing. A quantity of rice is poured into the receptacle when, with heavy blows, the long-headed plunger is driven into the mass of rice, thus forcing the kernels to slide over one another until, by their abrasion, the desired result is secured. The same method of polishing, on a larger scale, is accomplished where the plungers are worked by the weight of the body, a series of men stepping upon lever handles of weighted plungers, raising them and allowing them to fall under the force of the weight attached. Recently, however, mills worked by gasoline engines are in operation for both hulling and polishing, in Japan.
The many uses to which rice straw is put in the economies of these people make it almost as important as the rice itself. As food and bedding for cattle and horses; as thatching material for dwellings and other shelters; as fuel; as a mulch; as a source of organic matter in the soil, and as a fertilizer, it represents a money value which is very large. Besides these ultimate uses the rice straw is extensively employed in the manufacture of articles used in enormous quantities. It is estimated that not less than 188,700,000 bags such as are seen in Figs. 180 and 181, worth $3,110,000 are made annually from the rice straw in Japan, for handling 346,150,000 bushels of cereals and 28,190,000 bushels of beans; and besides these, great numbers of bags are employed in transporting fish and other prepared manures.
In the prefecture of Hyogo, with 596 square miles of farm land, as compared with Rhode Island's 712 square miles, Hyogo farmers produced in 1906, on 265,040 acres, 10,584,000 bushels of rice worth $16,191,400, securing an average yield of almost forty bushels per acre and a gross return of $61 for the grain alone. In addition to this, these farmers grew on the same land, the same season, at least one other crop. Where this was barley the average yield exceeded twenty-six bushels per acre, worth $17.