400 Observation on the Rotation of Crops..[Sune;

influence of circumstances’ or seasons+ every thing which we sow! is brought. to its full perfection, and to its utmost extent both of quantity and quality. When this is the case, as Mr Middleton properly observes, his rotation of crops may either be continued or not, may either be varied or not, and without disadvantage. But adopt the opposite plan, of raising a long succession of corn crops, and every process of the wisest system of eulturé will be rendered either ineffectual or destructive.. Ehus far I can proceed most cordially with Mr. Middleton in his generals, but in all his- particulars 1 carmot, join issue with him:

In each variation of his“ rotation of crops,” Mr. Middle- ton recommends the sowing of spring wheat, which is a species of crop very ill suited to most parts of this island, and pecu- liarly unfit for the adoption of farmers im dre northern. coun- ties. When this-crop is.resorted to, my bold assertion above’ recited, respecting circumstances and seasojis, must instantly be withdrawn: for in this instance every thing will depend upon seasons, and nine seasons out of ten will prove un ropi- tious:to spring sown wheat im almost every situation. For if the season is very encouraging to the crop, there is great dan~ ger of reaping little besides straw; and if the season is harsh: and unfavourable to vegetation, spring wheat will seldom ri-

en early enough to be harvested in time and in perfection,

‘here are, I allow, very many farmers who have occasionally, and through necessity, adopted this crop, but there are few found, I believe, that will be pravailed upon to repeat it when no such irresistible cause exists. 4 should like to see a substi- tute for this crop pointed out by this intelligent agriculturist.

Mr. Middleton at the conclusion of his“ second rotation eb medium and strong loam,” advises us to sow with barley ‘er oats“ a large portion of white clover,some of Peacey’s rye grass and other grasses to continue.” Now 1 have reason to think from what L have seen, and from what I have read in prior Number of your Magazine, respecting that hardy and coarse grass, called Peacey’s rye grass, that if it is sown to- gether with white clover and other grasses, which are all so, much more palatable to sheep than itself, that they would ob- tain so decided a preference as to be eaten bare to the roots, whilst this unpalatable grass would be left untouched, and unrestrained from running to bent and to seed. The farmers. ‘who are best acquainted with this very strong, sour, and early variety of rye grass, never sow it together with any other kind ef grass but broad clover, whieh is nearly as unpalatable in the estimation of sheep as itself, and then both are eaten freely, when there is no other more delicious species of food to take their fancy. Mr. Gibbs, of Piccadilly, Seedsman to the

Board of Agriculture, exhibited, at Lord Somerville’s shew of