. Elements of agricultural chemistry and geology. Agricultural chemistry. AMERICAN ATLANTIC BORDER. 91 Broad-loaved forests. General husbandry. No. 3. Oak Swamp and willow, hickory. Dry chalk downs. "White labor. Rice Sugar Pine forests. Treeless prairies. * and and Sandy barrens. â cotton, tobacco. Georgian wheat Little Colored labor Sea. Post-tertiary, and alluvial. Tertiary sands. Secondary Primary metamorphic* chalk marks. rocks and granite. In this section the reader will observe a close general relation between the changes in geological and agricultural character which
. Elements of agricultural chemistry and geology. Agricultural chemistry. AMERICAN ATLANTIC BORDER. 91 Broad-loaved forests. General husbandry. No. 3. Oak Swamp and willow, hickory. Dry chalk downs. "White labor. Rice Sugar Pine forests. Treeless prairies. * and and Sandy barrens. â cotton, tobacco. Georgian wheat Little Colored labor Sea. Post-tertiary, and alluvial. Tertiary sands. Secondary Primary metamorphic* chalk marks. rocks and granite. In this section the reader will observe a close general relation between the changes in geological and agricultural character which appear on the several successive terraces or flats of laud which intervene between the shores of the Atlantic and the slopes of the Alleghany Mountains. Where the most recent or alluvial loams and rich clays end, there the tobacco, Indian corn, and even wheat culture, for the time, end also. The tertiary sands be- long to a more ancient epoch, and to them are limited, by a strictly defined boundary on each side, the dark pine forests which are so striking a feature of the country. On the still older chalk, again, the treeless prairie and flinty wheat country is as distinctly limited by the formations on either hand; and beyond this, again, the changed forests and cultivation of the higher country are determined by the change in nature and in age which the rocks of this region exhibit. * The word metamorphic here used means changed or alteredâ^as clay, for example, is changed when it is baked into tiles or Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Johnston, Jas. F. W. (James Finlay Weir), 1796-1855. New York, C. M. Saxton
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectagricul, bookyear1853
