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| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
personnel regeneration |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Arthur Hart in a second-growth balsam fir stand, balsam fir regeneration by building, in June 1958 |
| Date: | Jun-58 |
