As public attention is now directed to the South as the future fi eld upon which Northern enterprise is to expend its energies, all well·ascertained facts become of impor�ance. The progress of vegetable development is a question of great moment when considered in connection with its re lations to the different altitudes of the mountains, and the prvduction of certain articles which are to become future staple commodities in the trade of the country. Difference in elevation has the same

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... , relatively, upon the advancement of vegetation that is produc(ld upon it by difference of latitude. To the horticulturist, a clreful in vestigation of this subject is of more than ordinary interest. Take the facts as they were collected. Leaving Cincinnati 011 the 10th of March, 1859, I found the vegetation still locked up in the embrace of winter, though the weat.her for many days had promiseu an early spring. On the 11th, at Louis ville, the buds of the swamp elm, the swamp maple, and sweet gum, were considerably swollen, and the blossoms of the elm forming. On the 12th, at Smithland, Ky., the peach blossoms were out, the leaves of the apple tree forming, and the lilac in leaf. From thence to Murphy, Cherokee county, North Carolina, I found the vegetation in the valleys gradually progressing. Here my investigations assumed a systematic form.