. Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada. Agriculture -- Canada; Agriculture -- United States; Farm produce -- Canada; Farm produce -- United States. 554 ROOT CROrS RUBBER wall to the ceilinp: is a double-boarded partition, and a door leads from the main cellar into this smaller room. This is for keepinj; celery banked in sand. The room has two small ventilators in the roof. In the main room are bins and shelves for ditferent vegetables. The cellar is thirty-nine feet six inches long, and t\venty-si.\ feet six inches wide. T
. Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada. Agriculture -- Canada; Agriculture -- United States; Farm produce -- Canada; Farm produce -- United States. 554 ROOT CROrS RUBBER wall to the ceilinp: is a double-boarded partition, and a door leads from the main cellar into this smaller room. This is for keepinj; celery banked in sand. The room has two small ventilators in the roof. In the main room are bins and shelves for ditferent vegetables. The cellar is thirty-nine feet six inches long, and t\venty-si.\ feet six inches wide. The interior height is seven feet six inches. The cellar is cool and dry. capable of being kept at a uniform temperature, and will accommodate four thousand bushels. RUBBER, OR CAOUTCHOUC. Figs. 790-798. By H. X. Ridley and J. H. Hart. Rubber, or caoutchouc, is obtained from the milky juice or latex of a considerable number of trees and shrubs, erect or climbing, which inhabit almost exclusively tropical parts, though some are found in sub-tropical regions. These plants belong. tf 'm:^A<:k- Fig. 790. A plantation of llcoca UranUciisn) and Seven years old. to the families Urticacere, Euphorhiacece and Apocy- nace/e. For practical agriculture, however, there are only four of these plants which can be utilized in cultivation, viz., Hevea Brasiliensis and Manihot Glaziovii of the Euphorhiacece, and Castilloa elastica and Ficus elastica of the Urticacece. The big woody climbers, Landolphia and Willughheia, of the forests of Africa and Malaya, do not respond to cultural treatment. Hancornia and various species of Ficus not mentioned above have given such poor results under cultivation that they are not worth the at- tention of the agriculturist, though the rubber has value when it can be collected in sufficient quantity. Mimusopg globosa, a tree which produces "Balata rubber " (or gutta-perchaj, is indigenous to South America and the island of Trinidad
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