4 Ergebnisse.

This report describes how lumber can be air-dried most effectively under outdoor conditions and illustrates the principles and procedures of air-drying lumber that were developed through field investigations and observations of industrial practices. Particular emphasis is placed on the yarding of lumber in unit packages. Included are topics such as why lumber is dried, advantages and limitations of the drying process, properties of wood in rel...

With illustrations in full color.

CONTENTSProgress through Cooperation John R. McGuireSeven Years of Growth Gene W. GreyRESOURCES, UTILIZATION, AND MARKETING Timber Demand and Use James E. Blyth Changing Resource and Utilization Glenn A. Cooper, Eugene F. Landt, Ronald D. Lindmark, and Harold A. Stewart Evaluation of Selected Wood Properties in Relation to Soil-Site Conditions H. E. Wahlgren Federal Trade Commission Guides and Their Effects on the Consumer Donald H. Gott Fores...

The newest edition is published by the U.S. Forest Service, Northeastern Area State and Private Forestry. This edition includes a number of new pests, many of them found on fir Christmas trees. The original manual had a strong emphasis on Scotch pine. Most of the original pest descriptions remain in the manual, however, given that Christmas tree growers are growing more fir and other species, new pest problems needed to be addressed.