he surface of the United States affords a study for soil is worthless for agricultural purposes. This dis- mountains where they have their source to the coastal the scientists which 4s of extreme interest and im- tribution of alluvial material is one of the most seri- plains is so abrupt that… … ed because so creviced by the of erosion by water has brought Brush Dams Which Are Now Being Introduced in the West to Hold Back the water. ^But even greater damage literal destruction to very large Mountain Torrents. has been done to plantation and areas of farm land and of territory other bottom…
Apparatus · Wanted · Buy · Water · Supplement · Croton · American supplement · Scientific American · Post office · Buy machinery · American supplements · Relay circuit · Air brush · Large amount · Quebec bridge · Years ago
Internet Archive · Public domain (published before 1931). Free to use for anything.
