1. Year--No. 1--Fallow No crop. No. 2--Wheat after wheat 15 bushels 3½ pecks per acre. 2. Year--No. 1--Wheat after fallow 37 ” -- ” ” No. 2--Wheat after wheat 13 ” 3¼ ” ” 3. Year--No. 1--Fallow after wheat No crop. No. 2--Wheat after wheat 15 bushels 3¼ pecks per acre. 4. Year--No. 1--Wheat after fallow 42 ” -- ” ” No. 2--Wheat after wheat 21 ” 0¼ ” ” 5. Year--No. 1--Wheat after wheat 17 ” 1¼ ” ” No. 2--Wheat after wheat 17 ” -- ” ” Taking the first four years, we have a total yield from the plot sown every year of 66 bushels 2¼ pecks, and from the two crops alternately fallowed, a total yield of 79 bushels. The next year, when wheat was sown after wheat on the land previously fallowed, the yield was almost identical with the yield from the plot that has grown wheat after wheat for so many years. So far, these results do not indicate any exhaustion from the practice of fallowing. On the other hand, they tend to show that we can get _more_ wheat by sowing it every other year, than by cropping it every year in succession. The reason for this may be found in the fact that in a fallow the land is more frequently exposed to the atmosphere by repeated plowings and harrowings; and it should be borne in mind that the effect of stirring the land is not necessarily in proportion to the total amount of stirring, but is according to the number of times that fresh particles of soil are exposed to the atmosphere. Two plowings and two harrowings in one week, will not do as much good as two plowings and two harrowings, at different times in the course of three or four months. It is for this reason that I object, theoretically, to sowing wheat after barley. We often plow the barley stubble twice, and spend considerable labor in getting the land into good condition; but it is generally all done in the course of ten days or two weeks. We do not get any adequate benefit for this labor. We can kill weeds readily at this season, (August), but the stirring of the soil does not develope the latent plant-food to the extent it would if the work was not necessarily done in such a limited period. I say _theoretically_, for in point of fact I _do_ sow wheat after barley. I do so because it is very convenient, and because it is more immediately profitable. I am satisfied, however, that _in the end_ it would be more profitable to seed down the barley with clover.