The modern husbandman: or, The practice of farming: As it is now carried on by the most accurate farmers in several counties of England. For the month of April. Containing, I. Several processes of plowing various lands. II. The transcendant uses of the late-invented Hertfordshire double plough. III. Of sowing barley, pease and thetches, by the drill plough. IV. Why it is too late to sow wheat in this month. V. A description of the new-invented spiky roll. VI. The prevention and cure of rotten sheep, also of the red-water, foot-rot, &c. VII. Keeping of cows, horses, &c. from diseases. VIII. The bites of jockies exposed. VIII. How a gentleman made several improvements in his estate by this author's directions. IX. Of the uses of burnt clay; and the mischief done to land by burning grass surfaces. With other beneficial matters, tending to the improvement of this useful science. By William Ellis, of little Gaddesden, near Hempstead, in Hertfordshire