Displaying 1 - 3 of 3 Enter search terms Search Conservation and stewardship of tree-ring resources: living trees and subfossil woodVan Pelt, Swetnam[no description entered]Type: DocumentYear: 1990 The enduring resource of wildernessFege, Corrigall[no description entered]Type: DocumentYear: 1990 New archaeological evidence on evolution in maizeMangelsdorf, Smith[no description entered]Type: DocumentYear: 1949