In these tests, phenolic constituents from bark of Shasta red fir were found ineffective as stiffening agents for corrugating medium. Other means of application, however, may be effective.
Gum from inner bark of Shasta red fir was not so effective as a beater additive as was locust bean gum, but...
In the first experiment the minimum dietary toxic
levels of vitamin A were determined in pregnant rabbits
over three parities. The treatments consisted of basal
diet plus 10,000, 30,000, 60,000, and 90,000 IU/Kg added
vitamin A. The basal diet was formulated to be free of
vitamin A and beta-carotene; rice...
The increasing volume of young-growth Douglas-fir timber cut in the Pacific Northwest emphasizes the need for more knowledge on the characteristics of lumber sawed from these trees.
The study described here was initiated to learn the extent arid causes of degrade resulting from kiln-drying young-growth Douglas-fir dimension lumber. At the...