Those rapids which are too shallow may be deepened by removing the stone and gravel, as the water above is in general deep, and if cuts are made through the gravel and sand banks, which obstruct the river about Fox's Creek, and a Utile higher up the navigation will be such as the act contemplates, and the expence will probably not exceed £2,000.

The portage at the Little Falls will be a heavy part of the work, -- the plan herewith delivered marked A, will exhibit the tract of a Canal, -- that marked B,' a section thereof; the heiglit to be surmounted is thirty-nine feet two indies, and will require first a strong work at t'le point B, to pi-event the Canal and Locks from being overflowed, and damaged in high freshes; at

1 These plans do not accompany the pamphlet.

1094 INLAND LOCK-NAVIGATION.

this point two guard gates at the distance of seventy feet from each other must be placed; tlie surface of the ground here is eiglit feet eight inclies above the level of the water in the river above the falls, and, as three feet ouglit to be given for the depth of tl\e water in the Canal, the depth to be dug at tliis point will be nearly twelve feet; if to the several heiglits marked on the plan at the otlier points C, D, and E, three feet be added we shall have the deptli to be dug at these points; at F we gain the level and thence from F to G only three feet is to be dug. Many large stones and rocks, and probably much solid rock will be found in all the distance from A to G which is 1G66 feet; the quantity of eartli, stone, and rock to be removed in this space, if the Canal has ten feet base, will be about 242,200 cubic feet ; From G to H whicli is 422 feet the Canal must be confined by a double dyke, or embankment, about four feet high: From H to I which is 123 feet, the whole deptli to be dug is about 4i feet, and contains 5085 cubic feet: From I, at various places to the water at the bottom of the falls about 100,000 cubic feet of earth must be removed, and about 1,200 feet of a dyke to be made.