Farm drainage The Principles, Processes, and Effects of Draining Land with Stones, Wood, Plows, and Open Ditches, and Especially with Tiles

CHAPTER XIX.

Chapter 1956 wordsPublic domain

DRAINAGE OF STIFF CLAYS.

Clay not impervious, or it could not be wet and dried.--Puddling, what is.--Water will stand over Drains on Puddled Soil.--Cracking of Clays by Drying.--Drained Clays improve by time.--Passage of Water through Clay makes it permeable.--Experiment by Mr. Pettibone, of Vermont.--Pressure of Water in Saturated Soil.