Knots in Second-growth Pine and the Desirability of Pruning

Knots in Second-growth Pine and the Desirability of Pruning
Author: Benson H. Paul
Publisher:
Total Pages: 1026
Release: 1938
Genre: Pine
ISBN:

The pruning of young trees in sparsely and unevenly stocked stands will greatly improve the resulting lumber grades. In northern white and red pines, even in fully stocked stands, artificial pruning is essential for the production of any of the best grades of lumber in a reasonable time.

The Military Engineer

The Military Engineer
Author:
Publisher:
Total Pages: 144
Release: 1927
Genre: Military engineering
ISBN:

"Directory of members, constitution and by-laws of the Society of American military engineers. 1935" inserted in v. 27.

Bibliography on Soil Erosion and Soil and Water Conservation

Bibliography on Soil Erosion and Soil and Water Conservation
Author:
Publisher:
Total Pages: 672
Release: 1938
Genre: Agriculture
ISBN:

This bibliography is a list of references to published material on soil erosion and soil and water conservation. Some of these references may not appear to deal directly with erosion or conservation, but they have a pertinent relationship to some phase of the subject.

Classed Subject Catalog

Classed Subject Catalog
Author: Engineering Societies Library
Publisher:
Total Pages: 906
Release: 1963
Genre: Catalogs, Classified (Universal decimal)
ISBN: