![]() | Chemical Lands David D. Vail is an assistant professor of environmental and agricultural history at the University of Nebraska at Kearney. |
![hidden image for function call](https://upload.wikimedia.org/wikipedia/commons/c/ca/1x1.png)
![]() | Chemical Lands David D. Vail is an assistant professor of environmental and agricultural history at the University of Nebraska at Kearney. |