But the work for certain sections of the upper part of the river is more complicated as about fifty or sixty miles of solid land of from ten to twenty feet above water level and thirty to forty feet below have to be cut in order to straighten the river's course. Of this cutting and removing work, how much will have to be done artificially and how much can be done by nature, I leave to the experts to estimate. Excepting this, the other parts of this work, I think, cannot cost much more than $400,000 a mile. So that the whole work from the sea to Hankow, a distance of 630 miles will cost about $252,000,000, or let us say, including the unknown part, $300,000,000 for the completion of the entire project for the regulating of the Yangtze River. By this regulating of the Yangtze River, we secure an approach of 600 miles inland for ocean-going vessels into the very center of a continent of two hundred millions of people of which half or one hundred million is located immediately along 600 miles of the great water highway. As regards remuneration for the work, this project will be more profitable than either the Suez or Panama Canal. [Illustration: MAP X] Although we could not find means whereby the works above Kiangyin may be made self-paying as those of the sections below by the reclamation of land, profit from city building along the course of the river can be realized after the regulating work is completed. In conclusion, I must say that the figures given concerning the harbor works and the Yangtze regulation are merely rough estimates which must be in the nature of the case. As regards the costs of building the rudimental dikes at the estuary of the Yangtze as well as along the dilating parts of the river, the estimation may seem too low. But the data on which I base my estimate are as follows: First, my own observation of the private enterprise of reclamation by building dikes at the Canton delta around my native village; second, the cheap stone that can be obtained at the Chusan Archipelago; third, the estimation of Mr. Tyler, Coast Inspector of the Maritime Customs for the blocking up of the North Channel at the upper end of Tsungming Island, where the narrowest part is about three miles. He says that a million taels or more is necessary for the work. Or, let us say, in round figures, five hundred thousand dollars (Mex.) a mile. This is two and a half times my estimate. Now, let us compare the difference. The three-mile channel at the upper end of Tsungming has an average depth of twenty feet of water, while in my project the sea wall or dikes will be built in water having an average of less than two thirds of this depth. Moreover, the work of blocking up the North Channel entirely at a right angle is many times more costly than that of building a rudimental dike of the same length in a parallel line with the current. Since five hundred thousand dollars are enough to block up cross-wise a mile of river twenty feet