4th Northeastern Forest Tree Improvement Conference (1956)
Johnsonburg, Pennsylvania August 7-8, 1956
- The Tionesta Scenic and Natural Area Allegheny National Forest
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- The Red Pine Provenance Test on the Kane Experimental Forest
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- Marking by Francois Mergen
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- Marking by Donald E. Peterson
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- Marking by Ernst J. Schreiner
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- Marking by Arthur L. Bennett
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- Marking by Svend O. Heiberg
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- Marking by C. Heimburger
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- The Crop-Tree Plot Established in 1940
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- Marking Symposium in an Allegheny Hardwood Stand
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- Marking by Ashbel F. Hough
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- Marking by J.E. Ibberson
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- Marking by Laurence E. Stotz
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- Summary of Marking Symposium
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