Search results for: Gerhold, Henry D.

Showing 1 - 9 results of 9 Refine Results
  1. 1

    Effect of air pollution on Pinus strobus L. and genetic resistance : a literature review

    Authors: Gerhold, Henry D.
    Published: Environmental Protection Agency, Office of Research and Development, Corvallis Research Laboratory ; For sale by National Technical Information Service, 1977
    Physical Description: v, 45 pages ; 28 cm.
    Government Document Book
  2. 2

    Our heritage of community trees

    Authors: Gerhold, Henry D.
    Published: Pennsylvania Urban & Community Forestry Council, 2002
    Physical Description: iv, 73 pages : illustrations ; 22 cm
    Book
  3. 3

    A century of forest resources education at Penn State : serving our forests, waters, wildlife, and wood industries

    Authors: Gerhold, Henry D.
    Published: Pennsylvania State University Press, 2007
    Physical Description: xii, 280 pages : illustrations, maps ; 24 cm
    Book
  4. 4

    A forester's legacy : the life of Joseph E. Ibberson, forester, tree farmer, philanthropist

    Authors: Gerhold, Henry D.
    Published: Pennsylvania Forestry Association/Stackpole Books, 2007
    Physical Description: viii, 200 pages : illustrations (chiefly color), map ; 24 cm
    Book
  5. 5

    Genetic evaluation of rapid height growth in pot- and nursery-grown Scotch pine

    Authors: Demeritt, Maurice E., Gerhold, Henry D.
    Published: United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1985
    Physical Description: 1 microfiche (11 pages) : negative, illustrations, 1 map ; 11 x 15 cm.
    Government Document Microfilm Book
  6. 6

    Genetic evaluation of rapid height growth in pot- and nursery-grown Scotch pine

    Authors: Demeritt, Maurice E., Gerhold, Henry D.
    Published: United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1985
    Physical Description: 1 online resource (11 pages) : illustrations, 1 map.
    Connect to online resource - All users (Federal Depository Library Program Persistant URL)
    Government Document Electronic eBook
  7. 7

    Breeding pest-resistant trees ; proceedings

    Published: Symposium Publications Division, Pergamon Press, 1966
    Other Authors: “…Gerhold, Henry D.…”
    Physical Description: ix, 505 pages : illustrations, group portraits ; 26 cm
    Conference Proceeding Book
  8. 8

    Better Trees for Metropolitan Landscapes : proceedings of the symposium held on 4-6 November 1975, at the U.S. National Arboretum, Washington, D.C.

    Published: [Department of Agriculture, Forest Service, Northeastern Forest Experiment Station] ; [for sale by the Supt. of Docs., U.S. Govt. Print. Off], 1976
    Other Authors:
    Physical Description: 256 pages : illustrations, graphs ; 26 cm.
    Government Document Conference Proceeding Book
  9. 9

    Street tree factsheets

    Published: School of Forest Resources, Pennsylvania State University, 1993
    Other Authors: “…Gerhold, Henry D.…”
    Physical Description: 1 volume (various pagings) : color illustrations ; 28 cm
    Book