Published in Journal of the Arnold Arboretum, in 1937, in volume 18, pages 54-57
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 1, pages 1-25
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 1, pages 26-53
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 2, pages 79-117
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 2, pages 118-129
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 2, pages 130-132
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 2, pages 133-140
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 2, pages 149-163
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 2, pages 164-172
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 2, pages 183-184
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 3, pages 185-195
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 3, pages 196-205
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 3, pages 206-257
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 3, pages 258-260
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 4, pages 273-321
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 4, pages 322-343
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 4, pages 344-348
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 4, pages 349-357
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 4, pages 357-359
Published in Journal of The Arnold Arboretum, in 1937, in volume 18, issue 4, pages 360