This farmer was paying his laborers one hundred cash per day and providing their meals, which he estimated worth two hundred cash more, making twelve cents, gold, for a ten-hour day. Judging from what we saw and from the amount of mud carried per load, we estimated the men would distribute not less than eighty-four loads of eighty pounds each per day, an average distance of five hundred feet, making the cost 3.57 cents, gold, per ton for distribution.
The lower section of Fig. 92 shows another instance where mud was being used on a narrow strip bordering the path along which we walked, the amount there seen having been brought more than four hundred feet, by one man before 10 A. M. on the morning the photograph was taken. He was getting it from the bottom of a canal ten feet deep, laid bare by the out-going tide. Already he had brought more than a ton to his field.
The carrying baskets used for this work were in the form of huge dustpans suspended from the carrying poles by two cords attached to the side rims, and steadied by the hand grasping a handle provided in the back for this purpose and for emptying the baskets by tipping. With this construction the earth was readily raked upon the basket and very easily emptied from it by simply raising the hands when the destination was reached. No arrangement could be more simple, expeditious or inexpensive for this man with his small holding. In this simple manner has nearly all of the earth been moved in digging the miles of canal and in building the long sea walls. In Shanghai the mud carried through the storm sewers into Soochow creek we saw being removed in the same manner during the intervals when the tide was out.
In still another field, seen in Fig. 93, the upper portion shows where canal mud had been applied at a rate exceeding seventy tons per acre, and we were told that such dressings may be repeated as often as every two years though usually at longer intervals, if other and cheaper fertilizers could be obtained. In the lower portion of the same illustration may be seen the section of canal from which this mud was taken up the three earthen stairways built of the mud itself and permitted to dry before using. Many such lines of stairway were seen during our trips along the canals, only recently made or in the process of building to be in readiness when the time for applying the mud should arrive. To facilitate collecting the mud from the shallow canals temporary dams may be thrown across them at two places and the water between either scooped or pumped out, laying the bottom bare, as is often done also for fishing. The earth of the large grave mound seen across a canal in the center background of the upper portion of the engraving had been collected in a similar manner.
In the Chekiang province canal mud is extensively used in the mulberry orchards as a surface dressing. We have referred to this practice in southern China, and Fig. 94 is a view taken south of Kashing early in April. The boat anchored in front of the mulberry orchard is the home of a family coming from a distance, seeking employment during the season for picking mulberry leaves to feed silkworms. We were much surprised, on looking back at the boat after closing the camera, to see the head of the family standing erect in the center, having shoved back a section of the matting roof.
The dressing of mud applied to this field formed a loose layer more than two inches deep and when compacted by the rains which would follow would add not less than a full inch of soil over the entire orchard, and the weight per acre could not be less than 120 tons.
Another equally, or even more, laborious practice followed by the Chinese farmers in this province is the periodic exchange of soil between mulberry orchards and the rice fields, their experience being that soil long used in the mulberry orchards improves the rice, while soil from the rice fields is very helpful when applied to the mulberry orchards. We saw many instances, when traveling by boat-train between Shanghai, Kashing and Hangchow, of soil being carried from rice fields and either stacked on the banks or dropped into the canal. Such soil was oftenest taken from narrow trenches leading through the fields, laying them off in beds. It is our judgment that the soil thrown into the canals undergoes important changes, perhaps through the absorption of soluble plant food substances such as lime, phosphoric acid and potash withdrawn from the water, or through some growth or fermentation, which, in the judgment of the farmer, makes the large labor involved in this procedure worth while. The stacking of soil along the banks was probably in preparation for its removal by boat to some of the mulberry orchards.
It is clearly recognized by the farmers that mud collected from those sections of the canal leading through country villages, such as that seen in Fig. 10, is both inherently more fertile and in better physical condition than that collected in the open country. They attribute this difference to the effect of the village washing in the canal, where soap is extensively used. The storm waters of the city doubtless carry some fertilizing material also, although sewage, as such, never finds its way into the canals. The washing would be very likely to have a decided flocculating effect and so render this material more friable when applied to the field.
One very important advantage which comes to the fields when heavily dressed with such mud is that resulting from the addition of lime which has become incorporated with the silts through their flocculation and precipitation, and that which is added in the form of snail shells abounding in the canals. The amount of these may be realized from the large numbers contained in the mud recently thrown out, as seen in the upper section of Fig. 95, where the pebbly appearance of the surface is caused by snail shells. In the lower section of the same illustration the white spots are snail shells exposed in the soil of a recently spaded field. The shells are by no means as numerous generally as here seen but yet sufficient to maintain the supply of lime.
Several species of these snails are collected in quantities and used as food. Piles containing bushels of the empty shells were seen along the canals outside the villages. The snails are cooked in the shell and often sold by measure to be eaten from the hand, as we buy roasted peanuts or popcorn. When a purchase is made the vender clips the spiral point from each shell with a pair of small shears. This admits air and permits the snail to be readily removed by suction when the lips are applied to the shell. In the canals there are also large numbers of fresh water eel, shrimp and crabs as well as fish, all of which are collected and used for human food. It is common, when walking through the canal country, to come upon groups of gleaners busy in the bottoms of the shallow agricultural canals, gathering anything which may serve as food, even including small bulbs or the fleshy roots of edible aquatic plants. To facilitate the collection of such food materials sections of the canal are often drained in the manner already described, so that gleaning may be done by hand, wading in the mud. Families living in houseboats make a business of fishing for shrimp. They trail behind the houseboat one or two other boats carrying hundreds of shrimp traps cleverly constructed in such manner that when they are trailed along the bottom and disturb the shrimps they dart into the holes in the trap, mistaking them for safe hiding places.