_Vineyards_--should be in rows five feet apart, with vines four feet apart in the row. Layers of one, and cuttings of two years' growth, will bear the second year, and very plentifully the third year. A good vineyard in the latitude of Cincinnati yields about one hundred and fifty bushels of grapes per acre, making four hundred gallons of wine. The average yield of wine per acre, throughout the country, is estimated at two hundred gallons. _Training under Glass._--By this means the fine foreign varieties may be brought to perfection in our high latitudes. With most of the best kinds, this can be done by solar heat alone. A house covered with glass at an angle of forty-five degrees, facing the south, will answer the purpose. With a slight artificial heat, the finest varieties may be perfected, and others forwarded, so as to have fine grapes at most seasons of the year. The vines are planted on the outside of the grapehouse, and allowed to pass in through an aperture two feet from the ground, and are trained up near the glass on the inside. Protect the roots in winter by a covering of coarse straw manure. Wind the vines on the inside with straw, lay them down on the ground in the grape-house, and keep it closed during the winter. A house one hundred feet long and twenty-five feet wide, filled mainly with Black Hamburg, with a few other choice varieties, would afford a great luxury, and prove a profitable investment. From one such house, near a large city, a careful cultivator may realize a thousand dollars per annum. Native and even hardy varieties are often greatly improved by cultivation under glass, or by a little protection in winter. The Isabella grape is hardy and productive in western New York. In 1856, we noticed a vine that had been laid down in a dry place and covered slightly with earth, in autumn; the fruit was more abundant, and one fourth larger, than that on a similar vine by its side that had remained on the trellis during winter: this shows the value of protection even to hardy vines. _Training._--There are many methods, and the question of preference depends upon the location of the vines, the space they may occupy, and the taste of the cultivator. There are four principal systems--the cane or renewal system, spur system, fan-training, and spiral or hoop training.