Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1949)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1954)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1955)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1956)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1957)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1958)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1959)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1960)