The farms and plantations in Maryland consist, in general, of from one hundred to one thousand acres. In the upper parts of the state, towards the mountains, the land is divided into small portions. Grain is what is principally cultivated, and there are few slaves. In the lower parts of the state, and in this part of the country between Frederic and Baltimore, the plantations are extensive; large quantities of tobacco are raised, and the labour is performed almost entirely by negroes. The persons residing upon these large plantations live very similar to the planters in Virginia: all of them have their stewards and overseers, and they give themselves but little trouble about the management of the lands. As in Virginia, the clothing for the slaves, and most of the implements for husbandry, are manufactured on each estate. The quarters of the slaves are situated in the neighbourhood of the principal dwelling house, which gives the residence of every planter the appearance of a little village, just the same as in Virginia. The houses are for the most part built of wood, and painted with Spanish brown; and in front there is generally a long porch, painted white. [Sidenote: WEATHER.] [Sidenote: CLIMATE.] From Baltimore I returned to Philadelphia, where I arrived on the fourteenth day of June, after having been absent about three months. During the whole of that period the weather had been extremely variable, scarcely ever remaining alike four days together. As early as the fourteenth of March, in Pennsylvania, Fahrenheit’s thermometer stood at 65° at noon day, though not more than a week before it had been so low as 14°. At the latter end of the month, in Maryland, I scarcely ever observed it higher than 50° at noon: the evenings were always cold, and the weather was squally and wet. In the northern neck of Virginia, for two or three days together, during the second week in April, it rose from 80° to 84°, in the middle of the day; but on the wind suddenly shifting, it fell again, and remained below 70° for some days. As I passed along through the lower parts of Virginia, I frequently afterwards observed it as high as 80° during the month of April; but on no day in the month of May, previous to the fourteenth, did it again rise to the same height; indeed, so far from it, many of the days were too cold to be without fires; and on the night of the ninth instant, when I was in the neighbourhood of the South-west Mountains, so sharp a frost took place, that it destroyed all the cherries, and also most of the early wheat, and of the young shoots of Indian corn; in some particular places, for miles together, the young leaves of the forest trees even were all withered, and the country had exactly the appearance of November. On the tenth instant, the day after the frost, the thermometer was as low as 46° in the middle of the day; yet four days afterwards it stood at 81°. During the remainder of the month, and