. Timber and some of its diseases. Timber; Trees. II.] ITS PROPERTIES AND VARIETIES. 23 marked zones, corresponding to spring and autumn wood, some Indian Leguminosae, &c. Zones of tissue of other kinds (especially wood-parenchyma) often occur in such timbers, and have to be under-. FiG. 7.—Transverse section of the wood oi Pongarnia glabra, Vent., selected to show a type of timber not uncommon in India. No distinct annual rings appear, but the wood is traversed by wavy bands of tissue, which may run into one another or not. The vessels ( " pores " ) are few and scattered, a
. Timber and some of its diseases. Timber; Trees. II.] ITS PROPERTIES AND VARIETIES. 23 marked zones, corresponding to spring and autumn wood, some Indian Leguminosae, &c. Zones of tissue of other kinds (especially wood-parenchyma) often occur in such timbers, and have to be under-. FiG. 7.—Transverse section of the wood oi Pongarnia glabra, Vent., selected to show a type of timber not uncommon in India. No distinct annual rings appear, but the wood is traversed by wavy bands of tissue, which may run into one another or not. The vessels ( " pores " ) are few and scattered, and differ in size ; the medul- lary rays well marked, but not large. To this type—differing in other details— belong many species of figs, acacias and other Asiatic Leguminoseee, &c. stood, since they affect the property of the wood very differently, some of the figs. None of the conifers or dicotyledonous trees, however, are devoid of medullary rays, and distinctive characters are based on the breadth and numbers of these: as examples for contrast may be cited the fine. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ward, H. Marshall (Harry Marshall), 1854-1906. London, Macmillan
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