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ogether with a Discussion of the structure of their wood,

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Denudation and Erosion in the Southern Appalachian Region and the

Monongahela Basin.

By Leonidas Chalmers Glenn.

Profes

sional Paper 72 of the U. S. Geological Survey.

1.7

Main Lib. Forestry

FORESTRY DIVISION.

BULLETIN No. 6.

Waltor Auditored

TIMBER PHYSICS.

PART I.

PRELIMINARY REPORT.

1. NEED OF THE INVESTIGATION.
2. SCOPE AND HISTORICAL DEVELOPMENT OF THE SCIENCE OF

TIMBER PHYSICS."
3. ORGANIZATION AND METIIODS OF THE TIMBER EXAMINATIONS

IN THE DIVISION OF FORESTRY.

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