OF SCOTLAND.

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ventitious manure, and particularly as to the climate in whichthey are situated. Every other circumstance being favourable,good clay soils are particularly adapted to the production ofwheat and beans, and may therefore be continued under thesecrops alternately, for a considerable time, or as long as theland can be kept clean from weeds by means of drilled beans.This is assuredly the most profitable course of crops thatcan be followed, providing a sufficiency of manure be procu-red, and the drilled beans attentively horse and hand hoed.Circumstances, however, may render it advisable, to interposea crop of clover and rye-grass occasionally for one year, inplace of the beans, which may be succeeded by oats. Thiscourse, therefore, may continue six or eight years, or evenlonger, according to circumstances, and will run thus: 1.Tal-low ; 2. Wheat; 3. Clover and rye grass ; 4. Oats; 5. Drill-ed beans; 6. Wheat. In this rotation, to preserve the fullfertility of the soil, and consequent abundance and profitable-ness of the crops, the soil ought to receive a recruit of manureevery third or fourth year, muck being first given in the fal-low year, and next to the bean crop. Whenever the soil,however, gets foul with root weeds, which it will sooner or lat-ter, in proportion to the nature of the weather which prevailsduring the course, another naked summer fallow must be re-sorted to for extirpating the weeds, and this begins a new ro-tation.

Where circumstances are not favourable to the executionof the before-mentioned rotation, the following may be ad-vantageously substituted, which contains a greater variety ofthe crops usually cultivated in Scotland , and which, by di-viding farm labour more equably throughout the year, maybe carried on with a smaller number of horses, and conse-quently at less expence : 1. Fallow ; 2. Wheat; 3. Drilledbeans ; 4. Barley ; 5. Clover and rye-grass ; 6. Oats ; 7. Drill-ed beans ; ti. Wheat. After which a new fallow begins afresh rotation. In this rotation it is absolutely necessary thatthe soil should have muck twice, and even thrice if it can be