Or in round numbers, two tons six cwt. of nitrogen per acre; an enormous quantity, which must have a powerful influence in encouraging the luxuriant development of the succeeding wheat-crop, although only a fraction of the total amount of nitrogen in the clover remains may become sufficiently decomposed in time to be available to the young wheat-plants. CLOVER-SOIL FROM PART OF 11-ACRE FIELD OF BURCOTT LODGE FARM, LEIGHTON BUZZARD, ONCE MOWN FOR HAY, AND LEFT AFTERWARDS FOR SEED. “Produce 2½ tons of clover-hay, and 3 cwt. of seed per acre. “This soil was obtained within a distance of five yards from the part of the field where the soil was dug up after the two cuttings of hay. After the seed there was some difficulty in finding a square foot containing the same number of large clover-roots, as that on the field twice mown; however, at last, in the beginning of November, a square foot containing exactly 18 strong roots, was found and dug up to a depth of 18 inches. The soil dug after the seed was much drier than that dug after the two cuttings of hay: The upper six inches deep, one foot square, weighed 56 lbs. The next ” ” ” 58 ” The third ” ” ” 60 ” ======= “After drying by exposure to hot air, the three layers of soil weighed: The upper six inches, one foot square 49¾ lbs. The next ” ” 50½ ” The third ” ” 51¼ ” =========== “Equal portions of the dried soil from each six-inch section were mixed together and reduced to a fine powder. An average sample thus prepared, on analysis, was found to have the following composition: Composition of Clover-Soil Once Mown for Hay, and Afterwards Left for Seed. Dried at 212° Fahr. { Organic matter 5.34 { Oxides of iron 6.07 { Alumina 4.51 { Carbonate of lime 7.51 Soluble in { Magnesia 1.27 hydrochloric Acid { Potash .52 { Soda .16 { Chloride of sodium .03 { Phosphoric acid .15 { Sulphuric acid .19