A B C D E F G H I J-K L M N O P Q-R S T U V W-Y
close this section of the libraryTrees Wounds and injuries.(2)
View the documentA photo guide to the patterns of discoloration and decay in living northern hardwood trees / by Alex L. Shigo and Edwin vH. Larson. Shigo, Alex L., 1930- cn Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969.
View the documentIdentification & evaluation of defects in eastern white pine logs & trees / by M.D. Ostrander. Ostrander, Myron D. Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1971.