"I think Mr Dudgeon makes too little allowance for stock and insurance, (£50.) Mr Watson's allows double, (£100,) which is low enough. Some of my neighbours here have lost from £200 to £300 by pleuro-pneumonia upon cattle alone, independent of other stock. I also think they are both wrong in the average quantity of grain grown. It may be done upon a farm of good land, in high condition, but--I mean taking a whole county--it is, I think, above the mark. For example, 1836, 1837, 1838, 1839, 1840, 1841, being six years running, with as fine appearance of wheat as I ever grew, I did not average twenty-six bushels per acre, weighing 64 lb. to 65 lb. per imperial bushel, in these six years. I considered my loss equal to 2000 bolls wheat below a fair crop, all in consequence of the fly."--(JOHN THOMPSON, Craigie, Leuchars.) "I have carefully looked over Mr Watson's statement, and I think that his calculations are very correct, and agree entirely with my experience, except in regard to the profits upon stock, which I think he has rather overrated, as the price of stock is falling every week. I do not think it necessary, however, to make out a separate statement."--(DAVID HOOD, Hatton, Glammis.) "In reply to yours of the 8th instant, requesting my opinion as to the accuracy of the statements in your enclosed proof-sheet, I have to state that, after mature consideration, I generally concur with the statement drawn by Mr Watson as to the results; though, I think, that as a deduction of £20 per cent on the profits of livestock has been made in the free-trade account, a like percentage should be deducted from the amount stated for casualties in the charge, thus making the loss under free trade £20 less. It also appears to me, that both the capital invested, and the amount received for crop and stock, are considerably beyond the average of farming capital and proceeds in Strathmore and the eastern district of Forfarshire; but as the statement is headed as "under the improved system of agriculture," of course the amounts must be different, and therefore are acceded to. "It may be remarked, that the depreciation of £20 per cent on the value of livestock, which has taken place this year, ought only to be deducted from the average of the last ten or twelve years, as the present prices might be considered equal to what we had been receiving previously to the opening up the southern markets.