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Of the hard woods in common use, the principal kinds are Oak, Walnut, and occasionally Mahogany. Of oak, the English variety is by far the best for the carver, being close in the grain and very hard. It is beyond all others the carvers' wood, and was invariably used by them in this country during the robust period of medieval craftsmanship. It offers to the carver an invigorating resistance to his tools, and its character determines to a great extent that of the work put upon it. It takes in finishing a very beautiful surface, when skillfully handled---and this tempts the carver to make the most of his opportunities by adapting his execution to its virtues. Other oaks, such as Austrian and American, are often used, but they do not offer quite the same tempting opportunity to the carver. They are, by nature, quicker-growing trees, and are, consequently, more open in the grain. They have tough, sinewy fibers, alternating with softer material. They rarely take the same degree of finish as the English oak, but remain somewhat dull in texture.
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