16 THE RE-AFFORESTATION OF HAINHAULT. years. The Rye-grass lasted longer and still there is some, but its place has been chiefly taken by Soft Brome (Bromus mollis). An identical result was observed in one of the Essex Field Experiments7 on "Laying-down Land to Grass" on Mr. A. B. Croxon's farm at Burnham-on-Crouch, where each grass sown by itself was followed by some different self-sown grass. This natural rotation of grasses is a subject of much interest and importance, and would well repay further study. It is the more remarkable in this case, as Soft Brome is not native to the forest. The 9 acres have now developed a very fair turf. Though the Red Clover has disappeared, White Clover is coming fast. The 18 acres lie across the very gravelly hill top and here the ground is almost bare except for Plantain and Sorrel, and the Bracken, which is beginning to spread. The lower portion contains more Soft Brome together with Plantain and Hawkweed. Little Cabin Hill still has much Soft Brome, but Fiorin is spreading rapidly and White Clover is beginning to appear. Golf-greens.—As an experiment in making golf-greens, patches in various fields have this autumn been drag-harrowed till much of the Fiorin has been torn out, and then sown with a mixture chiefly consisting of Perennial Rye-grass and Sheep's Fescue. Provided the grass is kept grazed and mown very close, which encourages stoloniferous and perennial grasses, the method should prove successful, and at any rate the time lost in plough- ing and cleaning the patches, and in the struggle of the sown grasses against the mass of weeds which is sure to appear even after cleaning, is avoided. Self-seeding.—The 35 acres of Colonel Lockwood's land was allowed to seed itself. The two halves of the field had been cultivated the previous two years exactly alike, but a profound difference in the natural development of the herbage was observed, On the upper or northern part a good deal of self-sown grass, chiefly Annual Meadow-grass (Poa annua), which is very abundant on the green rides in the forest, appeared in the autumn of 1902. In the spring of 1903 it was harrowed, broadcasted with White Clover and rolled. The White Clover germinated well. The hay that year largely consisted of Rye-grass, this giving way 7 See The Essex Field Experiments, 1896-1901; Part 1. On Permanent Pastures, by T. S. Dymond, County Technical Laboratories, Chelmsford.