Wood the growth of the young timber in open stands after the old trees have been removed is more rapid than in trees in a closed forest, and in the manufacture of articles where strength is an important consideration such "second-growth" hardwood material is preferred. This is particularly the case in the choice of hickory for handles and spokes. Here not only strength, but toughness and resilience are important. The results of a series of tests on hickory by the U.S. Forest Service show that: The effect of rate of growth on the qualities of chestnut wood is summarized by the
Microberlinia brazzavillensis The IUCN Red List of Threatened Species as vulnerable The wood is pale yellow to almost white with dark streaks, and it takes a nice polish. The wood is valued by some for its striped figure and is used in furniture. The wood is very tough and durable, and it can be used for objects such as tool handles and sporting equipment. It is resistant to termites and wood-rotting fungi. Microberlinia brazzavillensis Microberlinia brazzavillensis is a tree in the family Fabaceae, found in West Africa. It is also called zebrano, zingana, and allen ele, and is commonly sold in the