. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. FORCING FORCING furnishes :is nearly as possible the best condition for forced crops. However, an even-spun or shed-root house prows Tnany crops to a hijj^h degree of perfection. As to the inside arrangement of the house, the crops to be grown will have much to do in tlie matter. Cool- house crops, as lettuce,
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. FORCING FORCING furnishes :is nearly as possible the best condition for forced crops. However, an even-spun or shed-root house prows Tnany crops to a hijj^h degree of perfection. As to the inside arrangement of the house, the crops to be grown will have much to do in tlie matter. Cool- house crops, as lettuce, I'adish, and the like, are well grown in solid beds; while heat-loving plants, as tuma- toea, cucumbers, melons, etc., should be planted on benches built over the pipes. This means that the cost of building a greenhouse depends very mucii on what crop one expects to grow. The saving in benches and heat in houses devoted to cold crops is considerable, while the ease with which such crops may be grown recoTumends them to the beginner. The best paying crops are probably cucumbers and tomatoes; the most exacting, melons. The demand for melons, however, is limired, and the cost of producing good flavored, well ripened fruits in winter is high. Having stated wdjat we conceive to be underlying principles in the winter Forcing of all vegetables, we may consider each of the important crops separately. Let/nce. — The ideal soil for lettuce would be a well drained gravelly or sandy loam, but with care in water- ing a soil of heavy texture may be made to produce ex- cellent crops of the loose, open varieties. The heading or cabbage lettuce is more exacting if a fine quality is desired. The first crop of letluce from tlie houses should bo ready to use by the middle of Novemlier. For this crop seed should be sown in Weptenibor, allowing on an average from 6 to 8 weeks for the cro]) to mature. A temperature of 55*^-00° through the dtty, with a drop to 40° or 45° at night, will suit all v
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