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1. Development of minimum standards for hardwoods used in producing underground coal mine timbers.

Creator Personal:
Timson, Floyd G.
Title:
Development of minimum standards for hardwoods used in producing underground coal mine timbers.
Call Number:
P19625
Date:
1978
Description:

Serial issue. Issued as: Forest Service research note, NE-261.

Subject Topical:
Hardwoods., Mine timbering.
All:
Hardwoods., Mine timbering.

2. Reducing the proportion of cull material in hardwood stands.

Creator Personal:
Trimble, George R.
Title:
Reducing the proportion of cull material in hardwood stands.
Call Number:
P9630
Date:
1965
Description:
Journal article reprint from: Northern Logger, 1965:Aug.
Subject Topical:
Cull tree felling., Hardwoods., Forest management.
All:
Cull tree felling., Hardwoods., Forest management.