Oxford Social Studies Pamphlets, Issue 5Oxford book, 1951 - Social sciences |
Contents
CHAPTER PAGE | 1 |
SAVING OUR SOILS | 8 |
MAINTAINING OUR FORESTS AND GRASSLANDS | 18 |
Copyright | |
4 other sections not shown
Common terms and phrases
acres agencies American annually balance of nature basic birds coal conservation movement conservation problem conservation program Contour plowing copper cover crops dams Department of Agriculture deposits destroy destruction develop diseases economic electric power eroded farm farmers Federal government fertile field fire fish floods forest and grassland forest lands forest products Forest Service Franklin D fur-bearing animals future grass grasslands grazing GULLY habitats hydroelectric power important industry insects iron irreplaceable irrigation millions mineral mineral resources National Forests National Wildlife Federation natural resources nearly numbers pamphlet passenger pigeon petroleum plants plowing practices precipitation predators preserve rainfall recent region result River servation slope Soil Conservation Service Soil loss species streams strips surface Theodore Roosevelt thoughtless timber tion top soil trees U. S. Soil Conservation United States Department Valley various vast waste water table wild wildlife resources William Vogt World War II