Soil Survey


Book Description




Soil Survey


Book Description










Pennsylvania Farming


Book Description

Since precolonial times, agriculture has been deeply woven into the fabric of Pennsylvania's history and culture. Pennsylvania Farming presents the first history of Pennsylvania agriculture in more than sixty years, and offers a completely new perspective. Sally McMurry goes beyond a strictly economic approach and considers the diverse forces that helped shape the farming landscape, from physical factors to cultural repertoires to labor systems. Above all, the people who created and worked on Pennsylvania's farms are placed at the center of attention. More than 150 photographs inform the interpretation, which offers a sweeping look at the evolution of Pennsylvania's agricultural landscapes right up to the present day.













Bibliography of North American Geology


Book Description

1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.