CHAPTER X.
THE COST OF DRAINAGE.
Draining no more expensive than Fencing.--Engineering.--Guessing not accurate enough.--Slight Fall sufficient.--Instances.--Two Inches to One-Thousand Feet.--Cost of Excavation and Filling.--Narrow Tools required.--Tables of Cubic contents of Drains.--Cost of Drains on our own Farm.--Cost of Tiles.--Weight and Freight of Tiles.--Cost of Outlets.--Cost of Collars.--Smaller Tiles used with Collars.--Number of Tiles to the Acre, with Tables.--Length of Tiles varies.--Number of Rods to the Acre at different Distances.--Final Estimate of Cost.--Comparative Cost of Tile-Drains and Stone-Drains.