the quantity of eartli, stone, and rock wliicli it will be necessary to remove to form tl:e canal and locks, supposing the base of tlie canal to be 10 feet, w ill be in ronnd numbers about 350,000 cubic feet. If one half is either solid, or such other rock as will require to be bored and blcHvn, tliat half will be 175,000 cubic feet ; if then one miner can blow one cubic yard per day, it will require 6500 days for one man to complete the whole blowing, his wages at f mr shillings per day, amounts to jGlSOO
Remrning tlie blown stone and earth out of the canal^ 350,000 cubic feet, supposing 100 cubic feet removed by one man in one day, it will require 3500 days work to do the whole, at 4s. per day is 700
Gunpowder, brimstone, match paper, brickdust, and borers, scrapers and primers, estimated at 500
The v.liole of the dyking to be made by two parallel walls of four feet thick, each at the distance of seven feet, from the inside of one to the inside of the other : The solid contents of the masonry is computed at 150,000 cubic feet : A mason will My of such work 60 cubic feet per day 1125
One man to attend tlie mason 2500 days at 4s 500
Carting the stones, at Is for every 20 cubic feet, for 150,000 cubic feet 375
The spaces between tlie walls of the dykes to be tilled with eartlior stone ; the latter preferable, when cemented with quick lime : Tlie solid contents to be filled about 80,000 cubic feet at Is. for carthig tlie stone is. . 200