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Show RAISING GRAPES IN ENGLAND, k The hothouses in which the forced-grape forced-grape industry of England is carried m, are chiefly built on the span-roof system, and vary in length from 100 :o S00 feet, and in width from 20 to 10 feet. From four to six or eight :ows of four-inch piping are run :hrough the center and along the sides of the houses, and the heating s done by horizontal tubular boilers. The vines are usually planted three feet apart at the sides of the house;. f one or two leaders being trained up' beneath the glass to the ridge pole. For the first three or four years no returns re-turns are expected from the , vines, which are first established and gwn. to a gqod size before they are allowei , to bear. An excellent idea of the ex- : tent of a crop In such a forcing-hrtuse, i after the vines have fully grown, I may be gained from the illustration, j |