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This is the art of successfully changing fruits or plants from one climate to another. Removal to a colder climate should be effected in the spring, and to a warmer one in the fall. This may be done by scions or seeds. By seeds is better, in all cases in which they will produce the same varieties. Very few imported apple or pear trees are valuable in this country; while our finest varieties, perfectly adapted to our climate, were raised from seeds of foreign fruits and their descendants. The same is true of the extremes of this country. Baldwin apple-trees, forty or fifty years old, are perfectly hardy in the colder parts of New England; while the same imported from warmer sections of the Union fail in severe winters. This fact has given many new localities the reputation of being poor fruit-regions. When we remove fruit-trees to a similar climate in a new country, they flourish well, and we call it a good fruit-country. Remove trees from the same nursery to a different climate and soil, and they are not hardy and vigorous, and we call it a poor fruit-country. These two localities may be equally good for fruit, with suitable care in acclimating the tree and preparing the soil. Thus the rich prairies of central Illinois are often said not to be adapted to fruit. Give time to raise fruits from the seed, and to apply the principles of acclimation, and those rich prairies will be among the great fruit-growing regions of the world. Two things are essential to successful fruit-culture, on all the alluvial soils of the Northwest: raise from seed, and prune closely and head-in short, and thus put back and strengthen the trees for the first ten years, and no more complaints will be heard.

The peach has been gradually acclimated, until, transplanted from perpetual summer, it successfully endures a temperature of thirty-five degrees below zero. This prince of fruits will yet be successfully grown even beyond the northern limits of Minnesota. Many vegetables may also be grown in very different climates, by annually importing the seed from localities where they naturally flourish. Sweet potatoes are thus grown abundantly in Massachusetts. We wonder this subject has received so little attention. We commend these brief hints to the earnest consideration of all practical cultivators, hoping they may be of great value in the results to which they may lead.