In the southern and eastern portions of the Carolinas, the summers are very hot, sultry, moist and unhealthy. The extensive and rapid decomposition of vegetable matter engenders exhalations, which unite with the miasmata of the swamps, and create an atmosphere loaded with the most deleterious qualities. Intermittent and bilious fevers are frequent and severe. In the low country the summer lasts seven or eight months; and though the winter frost is sometimes severe enough to kill the tender plants, it seldom lasts more than three or four days, or penetrates the ground above two inches. Spring commences about the middle of February, and green peas are often in the market by the middle of March; but the weather varies very much till about the first of May, when it becomes steadily warm, and continues increasing in heat till September, when it begins to moderate. Almost every person whose circumstances permit, removes to a more healthy situation during this period, and a vast number go to the northern states in the summer, and return in the fall. The period of going north is mostly from the middle of May to the middle of July, and of returning, from the middle of October to the middle of November. The anxiety that prevails during that period is extreme, and when it is over, the inhabitants congratulate one another with the full prospect of ten or eleven months being added to their lives. The climate of Georgia differs little from that already described of the Carolinas. The rice swamps, and the low country in general, are very unhealthy, and the planters are obliged, during the sickly season, to retire to the elevated parts of the state. A near approach to the tropical temperature is found in some portions of Georgia, where the cane, the olive, and sweet orange flourish luxuriantly. The climate of the southern part of Alabama, and of Mississippi, resembles that of Georgia and South Carolina in the same latitudes. In the thirty-first degree of latitude, the thermometer stands in spring water at sixty-nine degrees, which is nearly the mean temperature of the year. A series of thermometrical observations is mentioned by Mr. Flint, which gave the following result. The warmest part of the warmest day in April, gave eighty-two degrees; mean heat of July of the same year, eighty-six; coldest in January, fifty-four; coldest in February, forty-three; warmest in March, eighty-five degrees. In the same year, trees even in swamps, where the vegetation is most tardy, were in full leaf by the second of April; at which time peach blossoms were gone. Peas were in pod by the twelfth of April; when peaches were of the size of a hazel-nut, and the fig trees in full leaf. Green peas were on the table, and strawberries ripe by the second of May, and on the sixteenth of the same month, mulberries, dewberries, and whortleberries were ripe.