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A graph depicting 30-year net production in MUs 90 through 93 after different treatments applied in the Cutting Practice Level Study

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Collection:	Penobscot Experimental Forest Historical Photo Archive
Keywords:	MU90 MU91 MU92 MU93 Cutting Practice Level Study selection system commercial clearcut diameter-limit cut study results
Location:	Penobscot Experimental Forest; Maine
Description:	A graph depicting 30-year net production in MUs 90 through 93 after different treatments applied in the Cutting Practice Level Study
Date:	1980

Marking to remove competition and release spruce in a selection cut, in MU91 in October 1979

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Collection:	Penobscot Experimental Forest Historical Photo Archive
Keywords:	MU91 Cutting Practice Level Study selection system marking release
Organisms:	spruce
Location:	Penobscot Experimental Forest; Maine
Description:	Marking to remove competition and release spruce in a selection cut, in MU91 in October 1979
Date:	Oct-79

Ralph Griffin and University of Maine students in a single-tree selection stand with a 15-year cutting cycle, in MU91 in May 1973

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Collection:	Penobscot Experimental Forest Historical Photo Archive
Keywords:	MU91 Cutting Practice Level Study selection system personnel
Location:	Penobscot Experimental Forest; Maine
Description:	Ralph Griffin and University of Maine students in a single-tree selection stand with a 15-year cutting cycle, in MU91 in May 1973
Date:	May-73

High-order cutting practice (selection cutting) in the Cutting Practice Level Study, 5 years post cut, photo point #2 in MU1 on May 2 1955

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Collection:	Penobscot Experimental Forest Historical Photo Archive
Keywords:	MU1 Cutting Practice Level Study selection system photo point
Location:	Penobscot Experimental Forest; Maine
Description:	High-order cutting practice (selection cutting) in the Cutting Practice Level Study, 5 years post cut, photo point #2 in MU1 on May 2 1955
Date:	5/2/1955

Good cutting practice (selection cutting) in the Cutting Practice Level study, eastern hemlock and spruce stand 4 years after improvement cutting, in MU1 on July 28 1954

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Collection:	Penobscot Experimental Forest Historical Photo Archive
Keywords:	MU1 Cutting Practice Level Study selection system timber stand improvement
Organisms:	eastern hemlock spruce
Location:	Penobscot Experimental Forest; Maine
Description:	Good cutting practice (selection cutting) in the Cutting Practice Level study, eastern hemlock and spruce stand 4 years after improvement cutting, in MU1 on July 28 1954
Date:	7/28/1954

High-order cutting practice (selection cutting) in the Cutting Practice Level Study, in MU1 on September 29 1952

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Collection:	Penobscot Experimental Forest Historical Photo Archive
Keywords:	MU1 Cutting Practice Level Study selection system
Location:	Penobscot Experimental Forest; Maine
Description:	High-order cutting practice (selection cutting) in the Cutting Practice Level Study, in MU1 on September 29 1952
Date:	9/29/1952

High-order cutting practice (selection cutting) in the Cutting Practice Level Study, post cut, photo point #2 in MU1 on August 20 1951

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Collection:	Penobscot Experimental Forest Historical Photo Archive
Keywords:	MU1 Cutting Practice Level Study selection system photo point
Location:	Penobscot Experimental Forest; Maine
Description:	High-order cutting practice (selection cutting) in the Cutting Practice Level Study, post cut, photo point #2 in MU1 on August 20 1951
Date:	8/20/1951

Selection stand, in MU 90

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Collection:	Penobscot Experimental Forest Historical Photo Archive
Keywords:	MU90 Cutting Practice Level Study selection system
Location:	Penobscot Experimental Forest; Maine
Description:	Selection stand, in MU 90
Date:

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