Читать книгу The Circle of Knowledge: A Classified, Simplified, Visualized Book of Answers - Various - Страница 197

The cultivation of the fiber-yielding plants and the manufacture of their products into textiles, ropes, cordage, and matting are among the most important industries of the world, and afford employment directly and indirectly to many millions of people. The industries, moreover, are of great antiquity, for we have definite evidence from the Lake Dwellings of Switzerland that flax was cultivated and used as a textile during the Stone Age, and the occurrence of linen cloth in the tombs of Egypt and constant references to the same material in the earliest books of the Bible are well known to everyone. How and when mankind first became aware of the possibilities of vegetable fibers as materials for clothing it is not easy to say, but it is not improbable that he first employed the fibers to supply his need for string cordage, especially in his hunting expeditions, and that gradually the idea of weaving the strings to form a fabric occurred to him. The apparatus employed must have been of extreme simplicity and the finished product crude according to modern ideas; but that thousands of years ago textiles of superlative quality, rivaling anything that can be produced to-day, were manufactured by Eastern races is a matter of history and observation.

Annotto, Anatto or Arnotto. The red substance imported under this name consists of the aggregated seed pellicles of Bixa Orellana. The coloring matter is best extracted by alcohol, as it is not very soluble in water. It is the source of coloring for dairy products, being the standard butter and cheese color in the United States, England and Holland. Has also a limited use as a dye in calico printing. It was anciently used by natives of Brazil, Central America, and West Indies to stain their bodies red, and by Mexicans in painting. Cultivation prehistoric in tropical America. Now naturalized in India.

Bamboo (Bambusa) grows in the tropics of Asia, Africa and America. The plants are in reality merely gigantic grasses. The stems are hollow and contain only a light pith, but they are jointed and at the nodes strong partitions stretch across the inside. They grow in clumps, and may reach a height of one hundred and twenty feet and a thickness of ten inches. Some species flower only once, some every year, and others at longer intervals.