Add to ORKGWm. E. Gosling and John Hacskaylo in Forest Physiology Greenhouse. Photo by O.D. Diller. Item #570
Carl Korschgen - Assistant Research Professor in Forestry.https://digitalcommons.library.umaine.edu/...
Emmett Conway, W.R. Anderson, J.W. Meteer, C.B. Stott, Dan Den Uyl, and O.D. Diller at Cloquet Exper...
Students working with native plants at the Watershed Institute\u27s green househttps://digitalcommon...
Wm. E. Gosling and John Hacskaylo in Forest Physiology Greenhouse. Photo by O.D. Diller. Item #570
H.B. Kriebel, Philip Larson, and Hans Nienstaedt at Northern Institute of forest Genetics, Rhineland...
Arboretum crew: Robert Chenevy; Elmer Daniels; Harry R. Muckley, foreman; and William Smith. Photo ...
Darwin Pound and Dr. John Hacskaylo demonstrating shearing of Scotch pine on summer tour of Ohio Chr...
H.B. Kriebel and Oswald Pouly in lath house in Secrest Arboretum. Photo by O.D. Diller. Item #570
Greenhouse, headhouse, laboratory, and office of Northern Institute of Forest Genetics, Rhinelander,...
Howard Kriebel's sugar maple genetics nursery in Compartment H, Secrest Arboretum. Taken by: O. D. ...
Cover photographs (clockwise from upper left): hemlock woolly adelgid (Adelges tsugae) ovisacs on he...
George Soine, Farm Forester, Cambridge, Ohio, on the edge of a beautiful stand of tulip trees. Owner...
1961 photograph of Plant Sciences. Dr. George W. Woodbury examining broad leafed plants in a greenh...
Dr. N.E. Hansen and an unknown man are in a greenhouse full of flowers on the campus of South Dakota...
John Moore, Illinois Central Railroad General Agent, Gulfport (Miss.), with John G. Guthrie, Forestr...
Carl Korschgen - Assistant Research Professor in Forestry.https://digitalcommons.library.umaine.edu/...
Emmett Conway, W.R. Anderson, J.W. Meteer, C.B. Stott, Dan Den Uyl, and O.D. Diller at Cloquet Exper...
Students working with native plants at the Watershed Institute\u27s green househttps://digitalcommon...
Wm. E. Gosling and John Hacskaylo in Forest Physiology Greenhouse. Photo by O.D. Diller. Item #570
H.B. Kriebel, Philip Larson, and Hans Nienstaedt at Northern Institute of forest Genetics, Rhineland...
Arboretum crew: Robert Chenevy; Elmer Daniels; Harry R. Muckley, foreman; and William Smith. Photo ...
Darwin Pound and Dr. John Hacskaylo demonstrating shearing of Scotch pine on summer tour of Ohio Chr...
H.B. Kriebel and Oswald Pouly in lath house in Secrest Arboretum. Photo by O.D. Diller. Item #570
Greenhouse, headhouse, laboratory, and office of Northern Institute of Forest Genetics, Rhinelander,...
Howard Kriebel's sugar maple genetics nursery in Compartment H, Secrest Arboretum. Taken by: O. D. ...
Cover photographs (clockwise from upper left): hemlock woolly adelgid (Adelges tsugae) ovisacs on he...
George Soine, Farm Forester, Cambridge, Ohio, on the edge of a beautiful stand of tulip trees. Owner...
1961 photograph of Plant Sciences. Dr. George W. Woodbury examining broad leafed plants in a greenh...
Dr. N.E. Hansen and an unknown man are in a greenhouse full of flowers on the campus of South Dakota...
John Moore, Illinois Central Railroad General Agent, Gulfport (Miss.), with John G. Guthrie, Forestr...
Carl Korschgen - Assistant Research Professor in Forestry.https://digitalcommons.library.umaine.edu/...
Emmett Conway, W.R. Anderson, J.W. Meteer, C.B. Stott, Dan Den Uyl, and O.D. Diller at Cloquet Exper...
Students working with native plants at the Watershed Institute\u27s green househttps://digitalcommon...