Farm Drainage The Principles Processes And Effects Of Draining
Chapter 23
DRAINAGE OF SWAMPS.
Vast Extent of Swamp Lands in the United States.--Their Soil.--Sources of their Moisture.--How to Drain them.--The Soil Subsides by Draining.--Catch-water Drains.--Springs.--Mr. Ruffin's Drainage in Virginia.--Is there Danger of Over-draining?