But it is to the slothful that this short essay is addressed. Pluck up the weeds, and the useful plants will take care of themselves. Reform the indolent, and the industrious will find a new spur to exertion. Ye careless and slothful Plough Boys, then, be advised by a friend. Cast off the sin of idleness, which so easily besets you, and imitate your industrious neighbours. Resolve for the future, _in the morning to sow your seed, and in the evening to withhold not your hand_; and you will soon find, that the blessings of Heaven await those who deserve them; and that health, prosperity, and a quiet conscience, are the never-failing rewards of virtuous industry. H. H. Jr. _[Plough Boy_. Mr. Nicholson's Prize Essay. _On a Rotation of Crops, and the most profitable mode of collecting, preserving, and applying Manures_. (Communicated to the Albany County Agricultural Society.) Some soils are peculiarly adapted for the growth of particular plants, and in such case many successive yearly growths of them may be raised, without manure, and without material diminution of product. We have known an instance of 14 good crops of wheat raised successively on the same ground; another of 18 crops of oats; others of at least 10 of barley, and nearly of 20 rye: But these were peculiar soils; and although this sameness of culture was found successful, no inference is therefore to be drawn that it was the most profitable, or that such soils would not eventually tire of their favourite crops, and then be found exhausted and unfit for others. Generally speaking, we conceive that one of the most important points in husbandry is a judicious rotation of such crops as are most profitable for culture, and at the same time best adapted for the particular soils which are to be cultivated. Lands seem naturally to require a change of growths. Where the oak has disappeared, after it had lifted its head to the springs of ages, another oak will not naturally rise, but some other tree. Instances have been known of lands covered solely with trees of deciduous growth, where the knots of the pitch pine were still to be found; a proof that pine was once a tenant of the soil. In the southern states, where lands have been exhausted with injudicious cropping, and then thrown out to common, they soon become covered with growths of trees different from those they originally bore. Some plants are so unfit for long continuance in any particular place that they are endowed with migratory powers, either by their winged seeds, which are wafted abroad by the winds; by their roots, by which they change their places of growth beneath the surface; or by their vines, by which they travel above ground, and thus locate themselves in different situations. Of the first description are the varieties of the thistle, the milk-weed, and the fire-weed; of the second, the potato and some other bulbous rooted plants; of the third, the straw-berry, the black-berry, the different species of the gourd